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Zulkaida Akbar19/08/2025, 09:00
Understanding the internal structure of the nucleon is a crucial step toward unraveling the mysteries of visible matter, which constitutes just ~ 5% of our universe. Despite significant progress in understanding atomic and subatomic particles, key properties of the nucleon, such as the origin of its mass, the "proton spin crisis," and the proton radius puzzle, remain unsolved. This talk will...
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Kiyoshi Tanida (Japan Atomic Energy Agency)19/08/2025, 09:25
Near-threshold molecular-like state may appear as threshold cusp especially when the interaction is not strong enough so that a virtual state is formed instead of a bound state. In this talk, I will report experimental identification of a threshold cusp at Belle and some other related results. I will also discuss future plans and possibilities at Belle II and J-PARC.
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Ilham Prasetyo (Sampoerna University)19/08/2025, 10:20
In this talk, I will be presenting the most recent published work, emphasizing more on the nuclear aspect. Then, I will shift my focus to some points that I realize from this work and some of my past works. The main points will be twofold. First, according to the works that I had done so far, nuclear matter models give a significant shift to the maximum mass of compact stars. Second, although...
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Norhasliza Yusof19/08/2025, 10:45
In this talk, I will highlight the critical role of nuclear reactions in massive and very
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massive stars and their significant impact on both nucleosynthesis and neutrino
emission. As these stars evolve through successive burning stages such as carbon,
neon, oxygen, and silicon burning, a complex network of nuclear processes governs
the formation of intermediate and heavy elements. These... -
Meng Hock Koh (Department of Physics, Faculty of Science, Universiti Teknologi Malaysia)19/08/2025, 11:10
Proper determination of pairing residual interaction strengths is crucial in any microscopic mean-field approaches. This has been traditionally performed by fitting the pairing strengths such that the experimental moment of inertia or the odd-even mass differences is reproduced. The equivalence of the two methods in the case of a constant matrix element has been investigated for nuclei in the...
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Tomona Kinugawa (RIKEN)19/08/2025, 13:00
Motivated by recent observations of exotic hadrons in the near-threshold energy region, the internal structure of near-threshold states has been intensively studied. To investigate their structure, we focus on a qualitative measure, called the compositeness $X$, defined as the probability of finding the clustering component in the wavefunction [1]. It is shown that in the limit where the...
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Lucas Happ19/08/2025, 13:25
We present a theoretical study of lifetimes of three-body resonances, focusing on the decay into a deep dimer and an unbound particle. By employing a two-channel model, we show that the width of resonances can vanish entirely by tuning of system parameters. A resonance with vanishing width can be interpreted as a stable bound state in the continuum, a phenomenon not yet observed in cold-atom...
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Muhammad Ridwan (Universitas Indonesia)19/08/2025, 14:05
The study of hadron by means of QCD is still unable to answer the unsolved puzzle; the hadron structures, especially those of heavy mesons. Hence, a comprehensive investigation of the 1S, 2S, and 3S states of heavy pseudoscalar (P) and vector (V) mesons for charmonia ($c\bar{c}$), bottomia ($b\bar{b}$), and charm-bottom ($c\bar{b}$) is strongly required. By employing the light-front quark...
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Muhammad Raihannafi Fadhel (Universitas Gadjah Mada)19/08/2025, 14:20
We have investigated the transverse parton distribution of the proton through the momentum‐transfer squared ($t$) distribution data of the differential cross section for coherent $J/\psi$ production at HERA. Based on a Gaussian–hotspot model motivated by a three valence quark picture of a proton, we introduce three independent geometric degrees of freedom: (1) the overall impact–parameter size...
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Fernando Chandra (Universitas Indonesia)19/08/2025, 14:35
The internal structure of the pion is investigated using generalized parton distribution (GPD) within the framework of the covariant Nambu–Jona-Lasinio (NJL) model. As an effective chiral symmetry-based theory of QCD, the NJL model provides valuable insight into non-perturbative aspects of pion structure. In the NJL model, to omit the divergence in the quark propagators, we apply a proper-time...
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Chindanai Bubpatate (Khon Kaen University)19/08/2025, 14:50
Starting from the relativistic manner, in this work, we construct the non-derivative four-point interactions for Octet and Decuplet baryons in the Chiral Effective Field Theory (ChEFT). The non-relativistic expansion of the baryon fields has been considered up to the Next-Leading Order (NLO) of the three-momentum. Using the 1/$N_c$ operator product expansion up to 1/$N_c^2$, we can reduce the...
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Cendikia Abdi (Hiroshima University)19/08/2025, 15:35
Nuclear deformity has been known to introduce fluctuations in the initial geometry and multiplicity in heavy-ion collisions. As the centrality bin is often calculated based on the multiplicity, this fluctuation is propagated as a larger correlation uncertainty between collision parameters and experiment observables. The aim of this study is to establish a framework to construct the probability...
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Tatsuhiro Hattori (Institute of Science Tokyo)19/08/2025, 15:50
Neutron stars exhibit sudden changes of its rotational velocity, known as "pulsar glitches". It has been believed that glitches are mainly caused by superfluid neutron vortices in the inner crust of neutron stars. However, importance of contributions of the outer core has been recently discussed, and further microscopic investigations of quantum vortices and fluxtubes in the outer core of...
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Muhammad Hafizt Al Ghifari (Universitas Indonesia)19/08/2025, 16:05
Recent observations of neutron stars indicate that there must be corrections to Einstein's theory of gravity. This research aims to study gravitational modifications in neutron stars. The GUP (Generalized Uncertainty Principle) effect is incorporated into the RG (Rainbow Gravity) metric in the slowly rotating case. GUP itself will affect the nuclear properties in neutron star matter, causes...
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Nantana Monkata (Khon Kaen University)19/08/2025, 16:30
In this work, we investigate an effective Lagrangian that describes the interactions between $D$ mesons, charmed baryons ($Y_c$), and nucleons within the framework of Heavy-Quark Spin Symmetry (HQSS). Using the super-multiplet formalism, we systematically construct the three-point interaction terms. As a result, by considering the minimal sets of the effective Lagrangian in the HQSS...
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Muhammad Ezra Acalapati Madani (Laboratoire de la Physique de l'École Normale Supérieure (LPENS) / Sorbonne Université)19/08/2025, 16:45
We introduce a geometric framework for non-unitary quantum processes, in line with the unitary SU(N) geometry. We propose a Finslerian metric for our goal, which modifies the original unitary geometry by applying the restrictions from Lindblad Master Equations from the perspective of Pontryagin's Maximum Principle (PMP). We illustrate the results of the Finslerian metrics for depolarising and...
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Adnan Bashir20/08/2025, 08:30
Just as the study of the hydrogen atom and its excited states deepened our understanding of electromagnetic interactions, investigating the internal structure of the proton and its electro-excitation transition form factors is essential for advancing our knowledge of the strong interaction. Can this be achieved directly from the fundamental equations of motion in terms of quarks and gluons?...
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Parada Hutauruk (PKNU)20/08/2025, 08:55
It is widely believed that Quantum Chromodynamics (QCD)—a covariant non-abelian gauge theory—as an underlying theory of strong interaction at low energy. QCD was discovered 50 years ago, but our understanding of its properties, including color confinement, asymptotic freedom, and spontaneous chiral symmetry breaking, is still far from complete. This incomplete comprehension of QCD imply to...
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Jingle Magallanes (Mindanao State University - Iligan Institute of Technology)20/08/2025, 09:20
This study calculates the energy decay rates ($r$) for both up and down quarks and the electric form factors ($G_E$) of the proton using low four-momentum transfer ($Q^2$) data from the PRad and MaMi electron-proton scattering experiments. The extracted decay rates for u and d quarks were nearly identical with $r≈3.94$, demonstrating a consistent exponential decay behavior across increasing...
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Narinder Kumar (Doaba College)20/08/2025, 10:15
In the present work, we discuss about the internal structure of the electron. The physical electron is considered as a composite system of a bare electron and photon. We mainly discuss about the Wigner distributions, gravitational form factors and mechanical properties of the electron. Results are obtained from the overlap of light-front wave functions in light-front QED model.
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Hyeon-Dong Son (Inha University)20/08/2025, 10:40
As a pseudo-Nambu-Goldstone boson, the kaon provides insights into how explicit chiral symmetry breaking influences the quark structure inside hadrons. In this talk, we explore the properties of the generalized quark distributions of the kaon within the nonlocal chiral quark model. We discuss how the explicit chiral symmetry breaking affects the (generalized) light and strange quark...
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Ahmad Jafar Arifi (JAEA)20/08/2025, 11:05
The light-front quark model (LFQM) provides a powerful framework for investigating the internal structure of mesons in terms of their partonic degrees of freedom. Its manifest boost invariance and simple vacuum structure make it especially well suited for connecting nonperturbative hadron properties with experimentally measurable observables. In this talk, I present recent studies of meson...
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Tetsuo Hyodo (Tokyo Metropolitan University)20/08/2025, 13:00
We explore the interplay among entanglement suppression, quantum statistics and enhanced symmetries in the non-relativistic S-wave scattering involving the lowest-lying spin-3/2 baryons, which can be considered as four-dimensional qudits. These baryons form a ten-dimensional representation (decuplet) under the SU(3) light-flavor symmetry and, in this limit, are considered indistinguishable...
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Sang-In Shim (RCNP, Osaka University)20/08/2025, 13:25
The production of the excited states of the $\Xi^{-}$ hyperon from proton-kaon collision, $p + K^- \to \Xi^{*-} + K^+$, with the s- and u-channel processes has been studied. We employed the effective Lagrangian method to describe the production of $\Xi^{*-}$ and utilized the Regge model for the u-channel process. To determine the couplings and the form factors for $\Xi^{*-}$, we also carry out...
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Ibuki Terashima (Tokyo Metropolitan University)20/08/2025, 14:05
We study the internal structure of exotic hadrons, especially focusing on the relation between the compositeness and physical observables [1, 2]. Defined as the probability of finding hadronic molecular components in the wave function, compositeness serves as a quantitative measure of the internal structure of exotic hadrons. We utilize the coupled-channel potential model incorporating both...
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Kai-Wen Kelvin-Lee (Research Center for Nuclear Physics, University of Osaka)20/08/2025, 14:20
In this work, we aim to calculate the diquark mass together with the quark-diquark potential in which we apply an extended HAL QCD potential method to a baryonic system made up from a static quark and a diquark. We consider various types of diquarks
(eg: scalar $0^{+}$ diquark, axial-vector $1^{+}$ diquark etc) to examine their mass differences.Numerical calculations are...
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Dominador Jr. Vaso (Department of Physics, MSU-IIT, KKPaCT, Khon Kaen University)20/08/2025, 14:35
In this study, we investigate the elastic scattering of proton-proton ($pp$) and proton-antiproton ($p\bar{p}$) systems in the Regge limit ($s>>|t|$), focusing on the contributions of spin-2 pomeron and spin-3 odderon exchanges to the scattering amplitude. Starting from effective Lagrangians describing these exchanges, we derive the corresponding amplitudes within the standard perturbative...
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Di-Lun Yang (Academia Sinica)20/08/2025, 15:20
In relativistic heavy ion collisions, the so-called little bang by analogy with the big bang in early universe can be realized in laboratories, where a deconfined phase of the quantum chromodynamic (QCD) matter at high temperature known as the quark gluon plasma (QGP) is produced. The QGP behaves as a nearly perfect fluid with the anisotropic flow that can be macroscopically described by...
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Bikai Gao (Research Center for Nuclear Physics (RCNP), Osaka University,)20/08/2025, 15:45
We present a novel unified approach to describe the dense symmetric nuclear matter by combining the quarkyonic matter framework with the parity doublet model. This integration allows for a consistent treatment of
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the transition from hadronic to quark degrees of freedom while incorporating chiral symmetry restoration effects. Our model introduces a chiral invariant mass for both baryons and... -
Nongnaphat Ponkhuha (Khon Kaen University)20/08/2025, 16:10
We investigate two-pion emission decays of singly charmed and bottom baryons, focusing on $\Lambda_Q^*(1P)$ and $\Xi_Q^*(1P)$ states with $J^P = 1/2^−$ and $3/2^−$, which belong to the flavor triplet $\bar{3}_F$. Our study includes both sequential decays through intermediate states in the flavor sextet $6_F$ and direct three-body decay, with coupling constants estimated using the chiral-quark...
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Fazle Rabi Fazli (UTM)20/08/2025, 16:25
Currently, one of the most important and difficult areas of research in nuclear structure is the production of superheavy elements. All superheavy elements discovered so far are not stable against the two dominant decay modes, namely alpha decay and spontaneous fission. The decay modes and other essential properties of these nuclei have not been fully investigated experimentally due to their...
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Teng Ting Li (University of Technology Malaysia)20/08/2025, 16:40
Quantum computers have also shown potential for efficient Hamiltonian simulation where computational resources scaling polynomially with system size. For instance, the Variational Quantum Eigensolver (VQE) has been adapted to evaluate ground state energy of nuclei [1] and the hardware specification needed [2], and to solve Bardeen-Cooper-Schrieffer (BCS) Hamiltonian [3]. In this project, we...
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Philipp Gubler21/08/2025, 08:30
The status of recent theoretical and experimental research related to the properties of the phi meson in nuclear matter is reviewed, focusing on observables that were/will be measured at the KEK E325, J-PARC E16 and J-PARC E88 experiments, including dilepton and K^+K^- decay modes and their angular distributions. The relation of these observables to fundamental properties of nuclear matter,...
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Daiki Suenaga (KMI, Nagoya University)21/08/2025, 08:55
Two-color QCD is one of the useful testing grounds to explore cold and dense QCD medium, since the first-principles lattice numerical simulations are doable without suffering from the so-called sign problem. In this talk, I review recent progress of such numerical experiments. Then, I summarize what is unveiled by comparing with my effective model, the linear sigma model. Also I discuss...
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Daris Samart21/08/2025, 09:20
We present a systematic study of low-energy interactions between charmed baryons and mesons, combining heavy-quark spin symmetry (HQSS) with the large-$N_c$ operator expansion. This approach reduces the 26 independent chiral SU(3) couplings to just five parameters, enabling predictive power across multiple reaction channels. We demonstrate how these constraints apply to the hidden-charm...
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Heribertus Bayu Hartanto (Asia Pacific Center for Theoretical Physics (APCTP), Pohang, South Korea)21/08/2025, 10:00
I will first motivate the study of top quark sector in the Standard
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Model, particularly through the top-quark pair production in association
with a jet at the LHC. I will then outline the challenges in performing
higher-order computation to achieve precise theoretical prediction,
focusing on the two-loop QCD scattering amplitude calculation. I will
describe our strategies in deriving a... -
Adil Jueid (Institute for Basic Science)21/08/2025, 10:25
The spectra of stable particles such as photons, positrons,
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antiprotons and neutrinos are one of the main ingredients to calculate
the fluxes of cosmic rays and radiation searched for in indirect
detection experiments. The modeling of the whole process is however
very complicated since after dark matter annihilation or decay, a
number of phenomena occur including resonance decays,... -
Hadi Mehrabpour (Peking Univresity)
The encoded nuclear structures related to flow fluctuations can be investigated at a fixed impact parameter in ultra-relativistic ion collisions through factorization breaking. This phenomenon is explored by analyzing momentum-dependent correlations among flow harmonics across distinct kinematic bins, specifically regarding transverse momentum ($p_T$) or pseudorapidity ($\eta$). The influence...
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Istikomah Istikomah (Universitas Islam Negeri Walisongo Semarang)
Big Bang Nucleosynthesis (BBN) represents a crucial phase in the universe's evolution, occurring approximately one second after the Big Bang. The BBN theory predicts a primordial Helium-4 abundance of about 25%, offering key limits on the number of light particles present at BBN temperatures. The Left-Right Symmetry Model with an Extra Scalar Field is a development of the Standard Model with...
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Nicholas Benoit (Hiroshima University)
Intense electromagnetic fields are formed in high-energy heavy ion collisions by the positively charged colliding ions. According to phenomenological models, charged observables produced in the collisions are affected by those electromagnetic fields [1]. However, the initial stages of the fields are not yet understood. We will discuss how the uncertainties in Glauber modeling of the colliding...
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Apriadi Adam (Research Center for Physics, National Research and Innovation Agency (BRIN))
In this work, we study the vacuum structure of an extended standard model with \$U(1)\_D\$ symmetry. The potential of the proposed model contains two \$SU(2)\$ scalar doublets and two scalar singlets. We theoretically analyze constraints, such as bounded-from-below, global minimum, and perturbativity up to the Planck scale. The experimental bounds from the Higgs invisible decay are also investigated.
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