Conveners
Poster - 1: D1
- Vishal Bhardwaj (IISER Mohali)
- Ambresh Shivaji (IISER Mohali)
- Satyajit Jena (IISER Mohali)
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Ms ASWATHI V (CHRIST ( Deemed to be University))12/12/2022, 14:00Poster
The study of photodisintegration of $^7Li$ is of importance to Nuclear Physics, Particle Physics and Astrophysics. Primordial abundances of light elements such as $D$, $^3He$, $^4He$ and $^7Li$ are predicted by Big Bang theory of early universe and is of great interest to cosmologists. Lithium, being fragile gets destroyed easily at relatively low temperatures. WMAP measurements have...
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Mr ARUNODAY SARKAR (Research Scholar of The University of Burdwan, West Bengal, India)12/12/2022, 14:00Poster
In recent years, cosmological experiments like PLANCK-2018 [1,2] and BICEP/KECK [3] have shown the efficacy of single field slow-roll inflaton potential in explaining various experimental parameters regarding LSS, CMBR anisotropy and polarization data with significant precession. Therefore, obtaining a low energy effective inflationary theory consistent with such a class of potentials from...
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Dr Tinku Sinha Sarkar (Saha Institute of Nuclear Physics (IN))12/12/2022, 14:00Poster
The W ± and Z-boson production is extensively studied at hadron colliders since it represents an important benchmark of the Standard Model (SM). In LHC energies, the measurements of W ± and Z-boson in p-p collisions had been done at √s = 8 and 13 TeV. The Electroweak theory and Quantum Chromodynamics (QCD) calculations at Next-to-Leading Order (NLO) and Next-to-Next-to-Leading Order (NNLO) in...
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Gaurav Mukherjee (Bhabha Atomic Research Centre, Homi Bhabha National Institute)12/12/2022, 14:00Poster
The quark-hadron transition that happens in heavy ion collisions is likely influenced by the effects of rotation and magnetic field, both present due to the geometry of a generic non-head-on impact. The simultaneous imposition of these two phenomenological parameters would lead to a modification of the conventional phase diagram for QCD matter. We explore the deconfinement transition between...
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Saurabh Shukla (Physical Research Laboratory)12/12/2022, 14:00Poster
Any grand unified model is plagued with particles capable of inducing
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proton decay. Identifying all potential scalar proton decay mediators
stemming from different irreducible representations of SO(10), we
will show their coupling with the Standard Model fermions, tree-level
contributions of the effective strength of $B-L$ conserving ($d=6$),
and $B-L$ violating ($d=7$) operators to... -
Mr Sudeepan Datta (Indian Institute of Science, Bengaluru)12/12/2022, 14:00Poster
Feynman integrals at any order of perturbation satisfy the Gelfand-Kapranov-Zelevinsky (GKZ) system of partial differential equations. In an ongoing collaboration, we present the automation of two techniques, namely the Groebner deformation method and the method of triangulations of point configurations, to solve such equations arising in the context of Feynman integrals, in the form of...
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Mr Avijit Hazra (SRM Institute of Science and Technology, Kattankulathur-603203, India.)12/12/2022, 14:00Poster
We investigate two-body nonleptonic weak decays of bottom meson involving heavy to heavy meson transitions into pseudoscalar and axial-vector mesons. The form factors, decay amplitudes, and branching ratios of CKM-favoured and suppressed modes are calculated in the relativistic and non-relativistic framework within the factorization hypothesis. We find that the branching ratios of several...
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Mr S. Parhi (Central University of South bihar)12/12/2022, 14:00Poster
We present a background model for TEXONO experiment that is situated in the Kuo-Sheng Neutrino Laboratory under 50-ton passive shielding house. The model includes background contributions from both internal and external contaminations. We adopt the Geant4-based simulation framework to develop the background model, taking into account all contributions from nine radioactive nuclides: 40 K, 208...
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Mr Christas Mony A (SRM Institute of Science and Technology, Kattankulathur – 603203, India.)12/12/2022, 14:00Poster
The mass spectra of bottomonium $b\bar{b}$, is calculated using Cornell potential in a non-relativistic framework, with spin dependent corrections corresponding to the spin-orbit, spin-spin and tensor interactions added perturbatively. The radial and orbital Regge trajectories are also studied for the same. Further, we estimated the wave function at the origin to predict the decay widths of...
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Suman Kumar Panja (School of Physics, University of Hyderabad)12/12/2022, 14:00Poster
Quantum gravity has been studied using various approaches, and all of these approaches introduce a fundamental length scale in the theory. Non-Commutative space-time is an approach which incorporates this fundamental minimum length scale naturally. Though length scale at which Casimir effect is measured and the scale at which quantum gravity effects are expected are very different, it is...
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Sanjeeda Sultana (Amity University, Kolkata)12/12/2022, 14:00Poster
In the work reported in this paper, we have analyzed generalized Chaplygin gas (GCG) and modified generalized Chaplygin gas (MGCG) in an interacting scenario. The equation of state parameter has been analyzed in both the cases and the stability of the models has been discerned through squared speed of sound. Stability against gravitational perturbations has been observed for both GCG and MGCG...
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Ms Vaishnavi Desai (Goa University)12/12/2022, 14:00Poster
Jet substructure modification due to different aspects of jet quenching is studied using jet shape and jet fragmentation observables. The jet shape contains information about the transverse energy distribution inside a jet and the jet fragmentation function describes the longitudinal momentum distribution of hadrons inside a reconstructed jet. These measurements provide insight into the jet...
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Dr Neetika Sharma (Department of Physical Sciences, I K Gujral Punjab Technical University, Kapurthala)12/12/2022, 14:00Poster
We use an anti-de Sitter/Quantum Chromodynamics (AdS/QCD) based holographic light-front wavefunction for the $J/\psi$ meson, in conjunction with the Color dipole model cross-section to investigate the cross-sections data for exclusive $J/\psi$ electroproduction. We used the dipole model parameters fitted to the most recent 2015 high precision HERA data on inclusive Deep Inelastic Scattering...
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Dr Subikash Choudhury (Saha Institute of Nuclear Physics (IN))12/12/2022, 14:00Poster
In the context of the formation of quark gluon plasma, whether the anisotropic flow in small collision system has the same underlying origin as that of the heavy-ions continues to be a matter of debate. Although the measurements of two and multi-particle correlations apparently suggest that azimuthal anisotropy in small systems is a consequence of collective excitation driven by the initial...
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Somnath Das12/12/2022, 14:00Poster
In the light of various CMB missions, the potential offered by AdS swampland conjectures is investigated. Recent CMB observations bound the sixth-order self-coupling of the inflaton field in the AdS swampland conjectures. Current observations can not rule out the inflaton field arising from AdS swampland conjectures.
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Karthik Jain (University of Hyderabad)12/12/2022, 14:00Poster
The experimental measurements of the LFU ratios $R_{D^{(*)}}$, $R_{K^{(*)}}$ and $R_{J/\psi}$ strongly hint the presence of new physics beyond the standard model in $b\rightarrow c\ell\nu_\ell$ and $b\rightarrow s\ell\ell$ transitions, as these values show a tension of about $(2-3)\sigma$ from their standard model predictions. In this work, we investigate the possible manifestation of new...
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Ms Gurjit Kaur12/12/2022, 14:00Poster
In the context of quark mixing phenomenon, understanding Cabbibo-Kobayashi-Maskawa (CKM) matrix and related phenomenology has important implications for the Flavor Physics including discovery of physics beyond the Standard Model. With continuous refinements in the data, the CKM phenomenology has been saddled with several persistent ‘anomalies’ which motivate one to explore some of the aspects...
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Mr Arnab Paul (IACS, Kolkata)12/12/2022, 14:00Poster
Minimal $U(1)_{L_\mu-L_\tau}$ extended Standard Model (SM) is well motivated and incorporates the discrepancy between the theoretical prediction and experimental observation of muon anomalous magnetic moment. We study the possibility of identifying the Beyond Standard Model (BSM) Higgs of $U(1)_{L_\mu-L_\tau}$ sector (otherwise required to break the additional symmetry) as the inflaton in the...
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Sanghati Saha (Amity University Kolkata)12/12/2022, 14:00Poster
In this work we have reported a study on the viscous generalized Chaplygin gas (GCG) in the presence of bulk viscosity and interacting scenario. Reconstruction schemes have been manifested in Einstein and modified $f(T)$ gravity framework. Non-viscous cases have also been taken into account. The equation of state (EoS) parameter has been studied under the various circumstances and the...
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Yuvaraj Elangovan, Mandar Saraf (Tata Institute of Fundamental Research)12/12/2022, 14:00Poster
A Cosmic Muon Veto Detector (CMVD) is being built around the existing RPC-based Mini-Iron Calorimeter (Mini-ICAL) to study the feasibility of a shallow depth neutrino experiment. The CMVD uses 4.5 m long extruded plastic scintillator strips. A Di-Counter made up of two extruded scintillator strips, is the basic building block of the CMVD. Two fibers embedded along the length of the strips are...
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Chandra Prakash (University of Delhi (IN))12/12/2022, 14:00Poster
Gas Electron Multiplier (GEM) detectors have been used in various applications because of their outstanding spatial and time resolutions, high-rate handling capabilities, and design flexibility. GEM detectors are a potential instrument for nuclear and particle physics studies. The GEM detector operates in an environmentally friendly and sustainable gas combinations. The purity and quality of...
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Mr Saddam Hussain (Indian Institute of Technology Kanpur)12/12/2022, 14:00Poster
The problem of late-time cosmic acceleration is one of the critical issues in the scientific community. Various theoretical models that predict the acceleration in the late time phase have been presented. Out of these models, the non-canonical scalar field models have gained lots of popularity in recent years. The tachyon field model is one of these models that has been studied in detail by...
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Biswajit Das (Institute of Physics, Bhubaneswar)12/12/2022, 14:00Poster
Despite the discovery of the Higgs boson, the Higgs sector of the standard model is still not fully established. In particular, the self couplings of the Higgs boson, and its couplings with gauge bosons, are still to be fully determined. We consider electroweak corrections to the process $H\rightarrow ZZ\rightarrow 4l$. The corrections depend on the $HHH$ and $ZZHH$ couplings. We investigate...
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ANIRBAN ROY CHOWDHURY (S.N.Bose National Centre for Basic Sciences)12/12/2022, 14:00Poster
The signature of noncommutativity on various measures of entanglement has been observed by considering the holographic dual of noncommutative super Yang-Mills theory. We have followed a systematic analytical approach in order to compute the holographic entanglement entropy corresponding to a strip-like subsystem of length l. The relationship between the subsystem size (in dimensionless form)...
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SHUBHAM YADAV (Birla Institute of Technology and Science Pilani, Pilani Campus)12/12/2022, 14:00Poster
Emission properties of the Astrophysical objects such as Neutron Stars are found using mass, pressure profile and thermal cooling rate. In this current work, we determine the cooling rate of spherically symmetric neutron star as a function of time and distance from the star's centre using NSCool code. Here we first find the mass, pressure and baryon number density profile of the non-rotating...
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Nida Malik (Department of Physics, Aligarh Muslim University, INDIA), Ms Sweta Rajpoot (Department of Physics, Aligarh Muslim University, India)12/12/2022, 14:00Poster
Energy dependence of information entropy is examined using the multiplicity distributions(MDs) of produced charged particles in pp collisions at ISR, SPS and LHC energies. The findings reveal that MDs at these energies exhibit a new type of scaling if the variable involved is the 'Information entropy' of the distribution, $S = -\Sigma Pn ln Pn$. Similar entropy scaling has also been observed...
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Mr Souvik Bera (Indian Institute of Science)12/12/2022, 14:00Poster
We present a new methodology to perform the epsilon-expansion of hypergeometric functions with linear epsilon-dependent Pochhammer parameters in any number of variables. Our approach allows one to perform Taylor as well as Laurent series expansion of multivariable hypergeometric functions. Each of the coefficients of epsilon in the series expansion is expressed as a linear combination of...
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Vikash Kumar Ojha (SVNIT Surat)12/12/2022, 14:00Poster
The concept of dark energy has been proposed to explain the observed accelerated expansion of the universe. One popular and trivial choice of source of dark energy is the scalar field. We choose the tachyonic field, one of the scalar fields, as a candidate for dark energy and discuss it in a model where matter and dark energy (tachyonic scalar field) are allowed to interact with each other....
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Rishabh Raturi (Indian Institute of Technology Bhubaneswar)12/12/2022, 14:00Poster
In this work, we have discussed how a multivariate algorithm, namely XGBoost, can deal with the disagreement between data and simulation in any analysis. The goal is to train the model in the control channel and extract scale factors which can be used for event re-weighting in the corresponding signal channel. In $B_{s}\to \phi\mu^{+}\mu^{-}$ analysis, $B_{s}\to J/\psi\phi$ is the...
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Prachi Sharma (Panjab University)12/12/2022, 14:00Poster
Straw tubes are drift chambers made of a gas filled conducting cylinder acting as cathode, and a wire stretched along the axis of the cylinder acting as an anode. The Straw Tube Trackers (STTs) are a low mass tracking system with excellent vertex, momentum, angular and time resolution, and particle identification. Straw Tube based tracking detector is proposed for one of the Near Detectors in...
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Ms Ankita S. Nain (D.A.V. College, Chandigarh)12/12/2022, 14:00Poster
Chiral Magnetic Wave (CMW), induces electric quadrupole moment in quark-gluon plasma produced in heavy-ion collisions, which removes degeneracy between elliptic flow of positively and negatively charged particles [1]. The charge-dependent elliptic flow as a function of the charge asymmetry ($A_{ch}$) serves as an important tool for study of CMW. We performed this study on 13.5 million Au+Au...
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Abinash Medhi (Tezpur University, Assam, India)12/12/2022, 14:00Poster
The Non-Standard Interactions (NSIs) are subdominant effects due to unknown couplings of neutrinos, often appearing in various extensions of the Standard Model, which may impact the neutrino oscillations through matter. It is important and interesting to explore the impact of NSIs in the ongoing and upcoming promising neutrino oscillations experiments. In this work, we have probed the imprints...
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Brijesh Kanodia (Indian Institute of Science)12/12/2022, 14:00Poster
Isolated ideal neutron stars (NS) of age $>10^9$ yrs exhaust thermal and rotational energies and cool down to temperatures below $\mathcal{O}(100)$ K. Accretion of particle dark matter (DM) by such NS can heat them up through kinetic and annihilation processes. This increases the NS surface temperature to a maximum of $\sim 2550$ K in the best case scenario. The maximum accretion rate...
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Anwesha Chakraborty12/12/2022, 14:00Poster
In the vicinity of Planck length scale, only where the quantum gravitational effects are expected to be observed, any attempt towards localization of an event inevitably results in gravitational collapse. To avoid such a scenario one needs to postulate noncommutative algebra between space-time coordinates, which are now promoted to the level of operators. On the other hand, a consistent...
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Dr Harleen Dahiya (Dr B R Ambedkar National Institute of Technology, Jalandhar), Pranjal Srivastava (Dr B R Ambedkar National Institute of Technology, Jalandhar), Ms Shweta Choudhary (Dr B R Ambedkar National Institute of Technology, Jalandhar)12/12/2022, 14:00Poster
The light sea quark distribution functions $\bar{d}(x)$ and $\bar{u}(x)$ have been calculated explicitly for proton using the chiral constituent quark model which has connotation of chiral symmetry breaking and SU(3) symmetry breaking. In view of the latest SeaQuest data the results have been discussed thoroughly for the light antiquark asymmetries and the Gottfried integral.
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Dr Anuj Chandra (Department of Physics, Aligarh Muslim University, Aligarh - 202 002, U.P, INDIA)12/12/2022, 14:00Poster
Correlation between the various observables, like, multiplicity, sum of event transverse momenta or the net charge of particles produced in pp collisions at LHC energies within intervals separated in pseudorapidity and azimuth angle is regarded as a sensitive tool to investigate the collision dynamics and test the models of hardon production. In the present work forward-backward (FB)...
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Mr Vijay Ghanghas (Chaudhary Bansi Lal University, Bhiwani)12/12/2022, 14:00Poster
Within the framework of the symmetric-asymmetric Gaussian barrier distribution (SAGBD) approach, the fusion cross-sections for 12C + 144,154Sm reactions are theoretically analyzed in the energy range lying below to well above the Coulomb barrier. In the SAGBD approach, the multidimensional nature of nuclear interaction potential is included by using a Gaussian type of weight function within...
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Chandramouli Chowdhury (ICTS-TIFR)12/12/2022, 14:00Poster
We revisit the status of asymptotic symmetries in higher even dimensions and propose a definition of superrotation charge beyond linearized gravity. We prove that there is a well-defined spacetime action of the superrotation charge on the space of asymptotically flat geometries. Additionally, we demonstrate that the Ward identity associated with superrotation charges follows from the...
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Zafri Ahmed Borboruah (IIT Bombay)12/12/2022, 14:00Poster
Left-Right symmetric models have been a natural extension to the standard model based on the fact that the standard model is predominantly left-handed. So it is normal to think that the left-right symmetry is restored at high energies. The spontaneous breaking of this left-right symmetry depends on the specific model and the minimal model involves extra Higgs triplets or doublets to give rise...
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Kameswara Rao Kodali (Tata Inst. of Fundamental Research (IN))12/12/2022, 14:00Poster
Existing endcap calorimeters of the CMS experiment cannot cope with the radiation or pileup expected during the high-luminosity operation of the LHC. Their jet energy resolution also needs to be augmented in order to enhance the physics reach of the experiment. At high jet energy, a correct association between the charged particle tracks and the calorimetric clusters is very important,...
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Soumya Mukherjee (Tata Inst. of Fundamental Research (IN))12/12/2022, 14:00Poster
The most dominant but experimentally difficult decay channel of the HIggs boson, into a pair of bottom quarks
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has already been established using the Higgs boson production associated with a vector boson (VH, V = W or Z),
when V decays leptonically. The relatively more abundant and the second largest Higgs boson production mode,
the vector boson fusion (VBF) process, is suitable to... -
Mohan Karthik12/12/2022, 14:00Poster
Over the past decade, data from ground based cosmic ray air shower arrays such as Pierre Auger Observatory and Ice-Cube Neutrino Observatory have consistently revealed a deficit in the number of muons predicted by air shower simulations compared to observations, at more than 8 standard deviations in combined statistical significance, leading to the so called muon puzzle. Resolving this puzzle...
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BHEEMSEHAN GURJAR (Indian Institute of Technology Kanpur)12/12/2022, 14:00Poster
In 1988 the European Muon Collaboration (EMC) at CERN shocked the physics community by announcing that the sum of the spins of the three quarks that make up the proton is much less than the spin of the proton itself, later on which is known so-called "proton spin puzzle." Physicists have been unable to answer a seemingly simple question: where does proton spin come from? How the proton’s spin...
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Aritra Ghosh12/12/2022, 14:00Poster
In the framework of black hole chemistry, we present an equipartition theorem for four dimensional AdS black holes with spherically symmetric and static horizons in Einstein gravity. It is found that at high temperatures, the total enthalpy of the spacetime is equally shared among the putative microstructures of the black hole horizon with each degree of freedom contributing an energy $k_BT$....
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Dr Maitreyee Mukherjee (Panjab University (IN))12/12/2022, 14:00Poster
In particle physics, the Glashow-Weinberg-Salam (GWS) model of the electroweak (EW) interactions describes the fundamental parameters, i.e, coupling constant ($\alpha_{EM}$), Fermi constant ($G_{F}$), W boson mass ($M_{W}$), Z boson mass ($M_{Z}$) and $\theta_{W}$, referred as the Weak Mixing Angle or the Weinberg Angle. This angle is a fundamental parameter in the Standard model (SM),...
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Captain Rituraj Singh12/12/2022, 14:00Poster
Collectivity is an essential feature of the strongly interacting matter formed in the deconfined phase of quarks and gluons in the collisions of nuclei at relativistic energies. Experimentally such collective behaviour has been observed in heavy ion collisions at RHIC and LHC energies. The other observations, like strangeness enhancement, also support the existence of quark-gluon plasma in...
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Deepesh Bhamre12/12/2022, 14:00Poster
The Light Front formulation of quantum field theories has been put to use in the study of hadron physics in the last few decades. However, like in the conventional formulation, Light Front field theories too are fraught with infrared divergences in the presence of massless particles. We employ the coherent state formalism to deal with these divergences at the amplitude level for Light Front...
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Radhika Vinze (University of Mumbai)12/12/2022, 14:00Poster
At collider machines operating at energies much above the electroweak scale, all Standard Model particles will appear essentially massless, including the nominally heavy ones. The kinematic consequences of this can make the signals for the Standard Model, and for other models, very different from the signals at the LHC or other colliders of the past. These differences are explained and some of...
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Jhilik Majumdar (Nikhef, Amsterdam)12/12/2022, 14:00Poster
The origin of cosmic ray particles is still largely unknown since they are
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deflected on their journey to the Earth by magnetic fields. However, very high
energy (VHE) photons that can be produced by both leptonic and hadronic
processes, are attenuated by extragalactic background light, i.e. they cannot be
probed distances larger than z ∼ 1 at energies above ∼ 1 TeV. In comparison,
only... -
Arnab Laha (Indian Institute of Science Education and Research (IN))12/12/2022, 14:00Poster
With the increasing complexity and growing volume of data taken by the current experiments, the enormous challenge of isolating potential BSM signatures from the known Standard Model(SM) footprints is an active area of research in HEP. Machine learning (ML) algorithms are appropriate for analyzing large amounts of data and can find more intrinsic patterns in multidimensional data. We explored...
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Jobin Sebastian (NISER BHUBANESWAR)12/12/2022, 14:00Poster
We investigate the nature of the complex retarded potential of a heavy quark moving in a hot and dense static quark gluon plasma. The well-known concept of the retarded potential in electrodynamics is extended to the context of the heavy-quark by modifying the static vacuum Cornell potential through Lorentz transformation to the static frame of the medium. The resulting potential in the vacuum...
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mitesh behera12/12/2022, 14:00Poster
We usually give importance to discrete symmetries, which helps us to investigate neutrino phenomenology. So, in here we consider a very simple permutation symmetry group i.e. $S_3$ to examine neutrino masses and mixing in the linear seesaw framework. To our help we have introduced modular symmetries which are advantageous in avoiding the requirements of multiple flavon fields which in return...
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waseem bashir ahmad12/12/2022, 14:00Poster
In this work we calculate the time evolution of local gauge invariant field theoretical model, comprising
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of a scalar field coupled to vector gauge field. Assuming a linear relationship between phase angles
α(x) at two closely separated space-time points x and x′ = x − δ, with 0 < δ < 1, we obtain an explicit
dependence of scalar field φ(x) at x and x′ in terms of Wilson-line variable.... -
Swarna Prabha Maharana12/12/2022, 14:00Poster
Most of the hadronic B decays observed proceed through a "D" meson (D, D$^*$, D$^{**}$) , as b$\rightarrow $c transitions dominate among other b transitions. D$^{**}$ indicates the collection of non-strange charm mesons falling in the mass range of 2.2 - 2.8 GeV/c$^2$.
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We present the study of B to charm decays in the Belle experiment with 711 fb$^{-1}$ electron-positron collision data... -
Ms Sanjeeda Bharati Das (MNIT Jaipur)12/12/2022, 14:00Poster
The decay D^{0}->K_{s}K_{s} is a singly Cabibbo-suppressed transition that involves the interference between cubar->ssbar and cubar->ddbar amplitudes, mediated by the exchange of a W boson at the tree level, that can generate CP asymmetries at the 1% level, even if the Cabibbo-Kobayashi-Maskawa phase is the only source of CP. Current experimental measurements of the CP asymmetry in...
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Sudeep Saha12/12/2022, 14:00Poster
We calculate the gravitational form factors (GFFs), pressure, shear and energy distributions for a quark state dressed with a gluon at one loop in QCD. We call this model as dressed quark model (DQM). We use the light-front Hamiltonian approach. In the light-front gauge, we use a two component formalism to eliminate the constrained fields. The state may be thought of as a perturbative model...
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Ms Tanima Mondal (IIT Kharagpur, India)12/12/2022, 14:00Poster
Detection of delayed sub-TeV photons from Gamma-Ray Bursts (GRBs) by MAGIC and HESS has proved the promising future of GRB afterglow studies with the Cherenkov Telescope Array, the next-generation ground-based gamma-ray astronomy observatory. With the unprecedented sensitivity of CTA, afterglow detection rates are expected to increase dramatically in the coming decade. We embark on exploring...
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Barnali Brahma (IIT Hyderabad)12/12/2022, 14:00Poster
NO$\nu$A is a long-baseline accelerator neutrino experiment at Fermilab that aims at precision neutrino oscillation analyses and cross-section measurements. Large uncertainties on the absolute neutrino flux affect both of these measurements. Measuring neutrino-electron elastic scattering provides an in-situ constraint on the absolute neutrino flux. In this analysis the signal is a single, very...
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Abhinava Danish12/12/2022, 14:00Poster
Soft function captures the IR singularities, and in the perturbation theory, it is known to exponentiate. Its logarithm can be organized in terms of collections of Feynman diagrams called webs. Studies into the classification of webs to high perturbative orders have been carried out up to four loop orders. Using next-to-eikonal Feynman rules, the soft function can be generalized to the...
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Pulak Banerjee (IIT Guwahati)12/12/2022, 14:00Poster
Next-to-next-to-leading order (NNLO) QED corrections are an important ingredient for different low-energy experiments such as MUonE, MUSE, and P2. In this talk, we will discuss the computation of such higher-order corrections to different observables relevant to the above experiments. To compute these corrections it is important to keep the masses of leptons finite, which regularises the...
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Moli Ghosh (MRINALINI DATTA MAHAVIDYAPITH, BIRATI, NORTH 24 PARGANAS, KOLKATA-700051)12/12/2022, 14:00Poster
In the current study we are demonstrating a bounce cosmology with generalized holographic cutoffs. The bounce realization arising from the application of holographic principle has been demonstrated with a modified gravity framework. Considering a multiplicative bouncing scale factor we have shown the four types of singularities. For this scale factor we have consider a scenario having...
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Shailesh Pincha (Indian Institute of Technology Guwahati)12/12/2022, 14:00Poster
DUNE (Deep Underground Neutrino Experiment) is a long baseline neutrino oscillation experiment that is currently being built to study the $\nu_{\mu}-\nu_e$ oscillations, which will eventually help in determining the neutrino mass-hierarchy, CP violation in the lepton sector and many other exciting areas of particle physics. A Near Detector (ND) Complex comprising three detectors - ND-GAr,...
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Gopal Yadav (Indian Institute of Technology Roorkee)12/12/2022, 14:00Poster
Exploration of entanglement entropy and obtaining the Page curve in the context of eternal black holes associated with top-down holographic duals of QCD-like theories at high temperatures and intermediate coupling, has been missing in the literature. In this talk, I will explain how we obtain the Page curve of an eternal black hole relevant to the M-theory dual of thermal QCD-like theories at...
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Tanay Dey12/12/2022, 14:00Poster
The detailed avalanche, saturated avalanche, and streamer simulation can help understand the detector physics behind the Resistive Plate Chamber (RPC). From a 3D Monte Carlo simulation of an avalanche inside an RPC, the transition from avalanche to saturated avalanche (when electron gain and loss are almost the same) followed by a streamer may be understood in more detail. Such simulation is...
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ANJALI S (Research Scholar, National Institute of Technology Calicut)12/12/2022, 14:00Poster
Anjali S and Saurabh Gupta
Department of Physics, National Institute of Technology Calicut,
Kozhikode - 673 601, Kerala, India
E-mail: anjalisujatha28@gmail.comAbstract: We investigate a system of particle constrained to move on a torus knot via the framework of superfield formalism and derive the off-shell nilpotent and absolutely anti-commuting...
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Mintu Kumar (Tata Inst. of Fundamental Research (IN))12/12/2022, 14:00Poster
We report various energy reconstruction algorithms used by the CMS hadron calorimeter (HCAL) during the LHC Run-2. The signal pulse of deposited energy in the HCAL subdetector is a function of time, and hence it overlaps with adjacent pulses due to the high pileup scenario and short proton-proton bunch crossing time (25 ns). The correct contribution of the signal pulse can be estimated using...
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Snehashis Parashar (IIT Hyderabad)12/12/2022, 14:00Poster
We consider two BSM scenarios with scalar leptoquarks (LQ), motivated by neutrino mass, muon $g-2$, and anomalies in $B$-decay ratios. A combination of a singlet and a doublet scalar LQ can generate one-loop Majorana neutrino mass, and contribute to the observed muon and electron $g-2$ values, while satisfying bounds from lepton flavour violating decays. A carefully chosen parameter space in...
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Mr Lalnuntluanga R (Indian Institute of Technology Hyderabad)12/12/2022, 14:00Poster
Neutrino oscillation experiments use nuclear targets to achieve the necessary interaction events to improve statistics. The inevitable nuclear effects arise due to the sophisticated nuclear environment and our poor understanding of the neutrino interaction with the targets gives rise to systematic uncertainties in the determination of neutrino oscillation parameters. In order to precisely...
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Nikhil Hatwar12/12/2022, 14:00Poster
The energy momentum tensor from the system created in heavy-ion collision could be decomposed into an equilibrium and an out-of-equilibrium component. The out-of-equilibrium part of the energy momentum tensor when expressed using the linear response theory takes a form in terms of a complex singular frequency. The imaginary part of this complex frequency corresponds to non-hydrodynamic mode....
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Sweta Baradia (Saha Institute of Nuclear Physics (IN))12/12/2022, 14:00Poster
Following the discovery of the Higgs boson by the ATLAS and CMS experiments at the LHC, began the zeal for measuring its coupling with other Standard Model (SM) particles. The Higgs Yukawa couplings to light quarks (u,d,s) are currently unknown and the study of inclusive decays of the Higgs boson to these states are extremely challenging due to the large multijet background. In this scenario,...
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Deepak Kumar (Theory Division, Physical Research Laboratory, Navarangpura, Ahmedabad 380 009, India)12/12/2022, 14:00Poster
We study the possibility of existence of deconfined quark matter in the core of neutron stars and non-radial oscillation modes in neutron and hybrid stars. A relativistic mean field model is used to describe the nuclear matter at low densities and zero temperature while Nambu--Jona-Lasinio model is used to describe the quark matter at high densities and zero temperature. A Gibbs construct is...
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Dayanand Mishra12/12/2022, 14:00Poster
The CKM elements $|V_{ub}|$ and $|V_{cb}|$ show a discrepancy between the exclusive and inclusive determinations. These determinations are masked with hadronic and other uncertainties, and thus can’t be unambiguously taken as implying new physics. In this talk, we consider a new observable: the ratio of these two CKM elements, $R_{V} ≡ \frac{|V_{ub}|}{|V_{cb}|}$, which is found to receive...
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Mr Pralay Kumar Das (Saha Institute of Nuclear Physics)12/12/2022, 14:00Poster
The Time Projection Chamber (TPC) [1] has the capability of three-dimensional particle tracking. We are developing a bulk Micromegas [2] based prototype TPC at SINP. In the present work, we have measured the detector gain, energy resolution, and electron transparency of the 128 um Micromegas in argon-based gas mixtures to optimize the operating drift and amplification field. We observe the...
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Mr Yumnam Monitar Singh (Manipur University)12/12/2022, 14:00Poster
In this paper, we attempt to find the neutrino oscillation parameters at low energy scale from high energy scale input values. These oscillation parameters are generated through radiative corrections under renormalization group equations (RGEs) in minimal supersymmetric model (MSSM). We assume that some particular symmetries exist at very high energy scale and such symmetries can lead to...
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Avnish .12/12/2022, 14:00Poster
The experimental observations from the colliders established the standard model (SM), is the most successful phenomenological framework to explain the non-gravitational interactions of fundamental particles at high energy. Non-zero neutrino mass and dark matter cast a shadow over its success. This necessitates the extension of the SM. The most straightforward and elegant extension of the SM to...
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Partha Bagchi12/12/2022, 14:00Poster
There have been different proposals for signatures of the formation of a deconfined thermal medium(quark-gluon plasma) in heavy-ion collisions. The suppression of $J/\Psi$ in the deconfined medium is one of the cleanest signals among many other signatures like elliptic flow, jet quenching etc. However, there are very few signals effective for the formation of QGP in small systems such as the...
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Mr R. R. Shinde (Tata Institute of Fundamental Research, Mumbai)12/12/2022, 14:00Poster
Resistive Plate Chamber (RPC) is a gaseous detector, which is going to be used as an active detector element for the Iron CALorimeter (ICAL) experiment, which is planned to be built by the India-based Neutrino Observatory (INO). A gas mixture consisting of R134a (95.2%), Iso-Butane (4.5%) and SF6 (0.3%) is used to operate the RPCs in the Avalanche mode. Composition of gas mixture plays a...
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Pracheta singha (Bose Institute)12/12/2022, 14:00Poster
Relativistic dissipative hydrodynamics is an effective macroscopic theory of a near-equilibrium system. It is a tool to explore the collective behaviour of the strongly interacting medium produced in heavy-ion collisions. The ideal hydrodynamic simulation deals with the evolution equations of hydrodynamic variables derived from the conservation laws using the equation of state as an input. To...
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Nasir Mehdi Malik (University of Jammu (IN))12/12/2022, 14:00Poster
Hadronic resonances are a unique tool to study the properties of the hadronic phase created after high energy collisions via regeneration and rescattering of their decay products. Studying the dependence of the yield of resonances on transverse spherocity and multiplicity allows us to understand the resonance production mechanism with event topology and system size, respectively. Furthermore,...
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Mr Kuldeep Kumar Pal (NISER)12/12/2022, 14:00Poster
A simulation-based projection study has been performed for a search for a vector-
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like top quark partner T in proton-proton (pp) collisions at √s = 14 TeV. The search
considers the operational conditions of the High-Luminosity LHC (HL-LHC). The
production pp → TT is followed by the decays T → bW, T → tH, and T → tZ with
equal branching fractions of 1/3. Events with one electron or muon,... -
Kaushik Mittal12/12/2022, 14:00Poster
We are searching for dark matter and with the help of neutrinos in these days. There are three known types or flavors of neutrinos, and they have some rather strange properties. One of these strange properties is their helicity. Elementary particles have spin, and when they travel the spin is either oriented along their direction of motion (right-handed helicity) or opposite to their motion...
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Sadhana Verma (Indian Institute of Technology Madras (IN))12/12/2022, 14:00Poster
A search for high mass resonances decaying into a pair of W bosons is presented. The analysis is based on proton-proton collisions observed by the CMS experiment at the CERN LHC for full Run 2, corresponding to an integrated luminosity of 138 fb−1 at sqrt(s) = 13 TeV. The analysis considers the fully leptonic final state . New techniques are implemented in the analysis to improve the...
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Ms Rashmi Dhamija (IIT Hyderabad)12/12/2022, 14:00Poster
The conservation of lepton flavor is one of the accidental symmetries of the SM. Charged lepton flavor violating processes are forbidden in the SM. Still, some new physics models, such as the leptoquark model, predict these processes that could be observed in a high-energy physics experiment.
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Bottomonium system is a good place to study such processes. Belle experiment is a flavor physics... -
Devender Kumar (Indian Institute of Technology Guwahati)12/12/2022, 14:00Poster
We search for the decay $B_s^0\rightarrow J/\psi \pi^0$ using 121.4 $fb^{-1}$ of data collected at $\Upsilon(5S)$ resonance state by the Belle detector at the KEKB asymmetric energy $e^+e^-$ collider located at the High Energy Accelerator Research Organisation, KEK, in Japan. In the Standard Model, the decay is expected to be rare, proceeding through the $W$-boson exchange and annihilation...
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Mr Hemant Kumar Prajapati (Indian Institute of Science Education and Research - Bhopal)12/12/2022, 14:00Poster
The CDF-II collaboration’s recent high-precision measurement of $W$ boson mass, $M_{W}^{\text{CDF}}$ = 80.4335 $\pm$ 0.0094 GeV, indicates $7-\sigma$ deviation from the SM expectation $M_{W} = 80.354 \pm 0.007$ GeV. This leads us to investigate the extension of SM, which can account for aforementioned problems with SM. We investigate the possibility of the well-known canonical Scotogenic...
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Ms Thandar Zaw Win (IIT Bhilai)12/12/2022, 14:00Poster
During peripheral heavy ion collisions in RHIC and LHC experiments, a huge magnetic field can be created. So, quark gluon plasma (QGP), produced in this heavy ion collision experiments, can face this strong magnetic field, which can decay with time. The electrical conductivity of QGP can be guiding quantity for this decay profile of the magnetic field. Present work has tried to explore the...
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Satyabrata Datta12/12/2022, 14:00Poster
In Low scale leptogenesis(LSL) models a small RH neutrino mass can dynamically be generated if there is a weak coupling between a long-lived scalar field and RH neutrinos despite having a large VEV, $v_\Phi$. In such a scenario, the correlation shared by the non-standard scalar era driven by $\Phi$ and $M_i$s provides an excellent opportunity to study the fingerprints of LSL on primordial...
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Praveen Bharadwaj (Indian Institute of Science Education and Research, Bhopal)12/12/2022, 14:00Poster
Neutrinos are massless in SM but one can introduce Majorana neutrino masses effectively through a dimension-five lepton number non-conserving operator $-\mathcal{L}_\nu^{d=5}=\frac{1}{\Lambda}(\overline{L}\Phi)(\Phi^TL^c)+h.c.$. The linear seesaw mechanism provides a interesting UV-completion of this operator realized in the simplest $SU(3)_c\otimes SU(2)_L\otimes U(1)_Y$ gauge structure. In...
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Taramati Guruwani (IIT Bhilai)12/12/2022, 14:00Poster
We propose a two-component fermionic Dark Matter(DM) in a minimal
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U(1)B extension of Standard Model(SM) with the inclusion of one complex
scalar S(1, 1, 0, −3) along with the usual Higgs doublet. Out of the 3 exotic
fermions added for anomaly cancellation, DM emerges as a mixture of the neutral component of the fermionic doublet and a singlet fermion. The motivation of
our work lies in the... -
Shruti De12/12/2022, 14:00Poster
Astrophysical and cosmological observations unambiguously established the existence of non-luminous but abundantly present Dark Matter, which interacts gravitationally. Among various models, Weakly Interacting Massive Particles (WIMPs) are the most popular and well-motivated candidates.
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I shall first present a new detector technology, named Snowball – Chamber - its design, involved DAQ... -
Mr Dibya S. Chattopadhyay (Tata Institute of Fundamental Research, Mumbai)12/12/2022, 14:00Poster
We analytically calculate the conversion probability $P_{\mu e}$ in the presence of sterile neutrinos, with exact dependence on $\Delta m^2_{41}$, and with matter effects explicitly included. Using perturbative expansion in small parameters, we show that the terms involving mixing angles $\theta_{24}$ and $\theta_{34}$ can be separated out, with the effects of the latter only arising due to...
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Ishu Aggarwal12/12/2022, 14:00Poster
Strangeness production has been suggested as a sensitive probe to the early dynamics of the deconfined matter created in heavy-ion collisions. Ratios of particle yields involving strange particles are often utilized to study freeze-out properties of the nuclear matter, such as the strangeness chemical potential and the chemical freeze-out temperature. The $d$+Au collisions connect ...
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Atul Jaiswal (Tata Inst. of Fundamental Research (IN))12/12/2022, 14:00Poster
Measuring the trilinear Higgs self-coupling parameter $\lambda_{HHH}$, which crucially describes the shape of Higgs potential, is among the key mandates at the Large Hadron Collider (LHC) experiments. In proton-proton collisions, this coupling can be probed directly by studying the production of the Higgs boson pair. Due to the rarity of the HH production signal, the analysis usually requires...
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Mr Rasheed Ahmad (Jamia Millia Islamia, India)12/12/2022, 14:00Poster
We have provided a modified grand canonical ensemble formulation for a multi-component hadron resonance gas system. We have considered the attractive as well as repulsive interaction among the constituent baryons (antibaryons) and obtained a Van der Waals type equation of state. The weak decay contributions of the heavier resonances have also been taken into account. Using our formulation we...
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Mr Dharmender Dharmender (Amity University, Noida)12/12/2022, 14:00Poster
The measurement of the production cross section and transverse momentum ($p_T$) spectrum of $Z$ boson at the LHC provides first tests of the Standard Model (SM). This measurement could be sensitive to exotic physics processes in new energy regime. The $Z$ boson production is also a common background process for many other physics analyses and therefore it must be well understood. In this...
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Subhadeep Rakshit (Sikkim University)12/12/2022, 14:00Poster
The superconformal bootstrap program for $\mathcal{N}=2$ superconformal field theories was initiated by Rastelli.et.al. The main ingredient for bootstrapping any CFTs is a four point function and which can be expressed interms of conformal partial waves. In this work we have computed the superconformal partial waves of the four-point correlator $\langle JJ\Phi\Phi^{\dagger}\rangle$, in which...
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Pritam Nanda (Saha institute of nuclear physics)12/12/2022, 14:00Poster
We revisit the symmetries of an isolated horizon (IH), exploiting some freedom in the choice of intrinsic data. The supertranslations are realized as additional symmetries. Furthermore, it is shown that all smooth vector fields tangent to the cross sections are Hamiltonian. We show that joining two IHs which differ in these Hamiltonians and boundary data, under the action of a...
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jyotsna Singh (University of Lucknow, India)12/12/2022, 14:00Poster
A long-baseline Deep Underground Neutrino Experiment (DUNE) is a novel and ambitious setup which will come-up in midwestern United State.This world class laboratory will not only address the fundamental questions about the nature of elementary particles and their role in the universe but it aims to announce groundbreaking discoveries.
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In DUNE the measurements of neutrino oscillation... -
Dr MUTHUKUMAR B. (Pondicherry University)12/12/2022, 14:00Poster
We consider the twisted-diffeomorphism framework of canonical noncommutative spaces in which the noncommutative version of metric tensor, Christoffel symbols, curvature tensors and curvature scalars are constructed in terms of their commutative counterparts. Further, we consider the two commutative spaces that are related to each other by a non-injective coordinate transformation i.e., a...
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FNU Rutik12/12/2022, 14:00Poster
We report modifications to the traditional Blast wave fit to momentum spectra of particles at mid rapidity emitted from central Au+Au collisions at √sN N = 3.0 GeV in STAR, and compare to HADES Collaboration results at √sN N = 2.4 GeV. We explore a scenario of a
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Gaussian shape of emission source in rapidity, which modifies the boost invariance assumption of the traditional Blast wave model.... -
Anjaly Menon12/12/2022, 14:00Poster
Measurements of two particle correlations are sensitive to several characteristics of the
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medium created in heavy ion collisions. Looking at the correlations of charged and
neutral kaons might provide information about the potential formation of disoriented
chiral condensates (DCCs). Previous ALICE measurements have indeed shown a
strong anti-correlation between charged and neutral kaons,... -
Saiyad Ashanujjaman12/12/2022, 14:00Poster
While the triplet-like Higgses up to a few hundred GeV masses are already excluded for a vast region of the model parameter space from the LHC searches, strikingly, there is a region of this parameter space that is beyond the reach of the existing LHC searches, and doubly/singly-charged and neutral Higgses as light as 200 GeV or even lighter are allowed by the LHC data. We study several search...
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Dhruv Ringe (Indian Institute of Technology Indore)12/12/2022, 14:00Poster
The flavor symmetry-breaking scale of the Froggatt-Nielsen (FN) mechanism is very weakly constrained by current experiments and can lie anywhere from a few TeV to the Planck scale. We develop ultraviolet (UV) complete models that generate the FN mechanism, with a global $U (1)_{\rm{FN}}$ flavor symmetry for two commonly used charge assignments. We explore the possibility of a strong...
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Ms Manali Roy (Dept. of Physics Pondicherry University)12/12/2022, 14:00Poster
We consider canonical noncommutativity among spacetime coordinates which gives rise to twisted Conformal algebra and twisted Poincare algebra. Different aspects of Weyl Tensor in four-dimensional noncommutative spacetime are discussed. We calculate the noncommutative correction to Weyl Tensor in noncommutative Minkowski spacetime in Spherical polar coordinate and Conformally compactified...
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Devabrat Mahanta (Indian Institute of Technology Guwahati)12/12/2022, 14:00Poster
We study the possibility of generating baryon asymmetry of the universe from dark matter (DM) annihilations during non-standard cosmological epochs. Considering the DM to be of weakly interacting massive particle (WIMP) type, the generation of baryon asymmetry via leptogenesis route is studied where WIMP DM annihilation produces a non-zero lepton asymmetry. Adopting a minimal particle physics...
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Mr Joy Ganguly12/12/2022, 14:00Poster
We propose a scoto-seesaw framework in an $A_4$ flavor symmetric framework which can explain the TM2 mixing pattern. In this set up, we explain tri-bimaximal mixing (TBM) pattern in a type I seesaw mechanism with two right-handed neutrinos. As TBM pattern cannot explain non-zero reactor mixing angle, we introduce a scotogenic contribution with one fermion which combining with seesaw mechanism...
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