Conveners
Neutrinos I
- Shirley Li (Fermilab)
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Dr Debasish Borah (Indian Institute of Technology Guwahati)09/05/2022, 16:30
We propose a light Dirac neutrino portal dark matter (DM) scenario by minimally extending the particle content of the standard model (SM) with three right handed neutrinos ($\nu_R$), a Dirac fermion DM candidate ($\psi$) and a complex scalar ($\phi$), all of which are singlets under the SM gauge group. An additional $Z_4$ symmetry has been introduced for the stability of DM candidate $\psi$...
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Dr Matthew Sullivan (Brookhaven National Laboratory)09/05/2022, 16:45
We consider the possibility that Dirac neutrino masses may be a manifestation of chiral symmetry breaking via non-perturbative QCD dynamics. Due to the key role of light quarks in this mechanism, this can naturally lead to signals that are accessible to hadron colliders. Bounds from charged meson decays imply that the strange quark condensate leads to the dominant effect. We propose a model...
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Bei Zhou (Johns Hopkins University)09/05/2022, 17:00
Neutrino telescopes allow powerful probes of high-energy astrophysics and particle physics. Their power is increased when they can isolate different event classes, e.g., by flavor, though that is not the only possibility. Here we focus on a new event class for neutrino telescopes: dimuons, two energetic muons from one neutrino interaction. We make new theoretical and observational...
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Roshan Mammen Abraham (Oklahoma State University)09/05/2022, 17:15
The significant neutrino flux at high rapidity (far forward direction) at the LHC has so far gone unstudied and wasted. The proposed Forward Physics Facility (FPF) aims to redress this by having dedicated detectors to study neutrinos at TeV energies. In this talk I will present some phenomenological studies in this direction. i) Charged current neutrino interactions have been extensively...
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Anna M. Suliga (UC Berkeley and U. of Wisconsin)09/05/2022, 17:30
To fully understand the whole core-collapse supernova population, it is essential to observe neutrinos from multiple supernovae events - the diffuse supernova neutrino background (DSNB). The Super-Kamiokande (SK) detector achieved the most stringent upper limit on the electron antineutrino component of the DSNB. This limit is only a factor of 2-3 above most of the theoretical predictions. In...
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Shreyashi Chakdar09/05/2022, 17:45
We carry out a systematic investigation for minimal scotogenic models based
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on a dark $U(1)_D$ gauge symmetry, in which the neutrino masses are induced at the one-loop level and include a chiral dark matter(DM) candidate. Moreover, we assume this $U(1)_D$ gauge symmetry is broken by only one Higgs singlet scalar that also generates masses to all dark fermions. The stability of the DM... -
Sebastian Urrutia-Quiroga (University of Massachusetts Amherst)09/05/2022, 18:00
Lepton number violation (LNV) is a very attractive research topic for theoretical and experimental physicists due to its implications beyond the Standard Model. It provides feasible theoretical explanations to several open questions in particle physics (e.g., the origin of neutrino mass) and has a rich phenomenology at different energy scales. We explore the underlying connections between...
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Garv Chauhan (UCLouvain)09/05/2022, 18:15
Hidden U(1) symmetries in the right-handed neutrino ($\nu_R$) sector are theoretically well-motivated and would give rise to an inherently dark gauge boson which we refer to as the $\nu_R$-philic Z'. An important feature of this Z' is that its couplings to neutrinos are generally much larger than its couplings to charged leptons and quarks, providing a particularly interesting scenario for...
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