Phenomenology 2022 Symposium: From Virtual to Real

Session

Neutrinos II

10 May 2022, 16:30

Lawrence Hall 104

Conveners

Neutrinos II

• Anna M. Suliga (UC Berkeley and U. of Wisconsin)

121. A New Idea for Relic Neutrino Detection

Dr Bhupal Dev (Washington University in St. Louis)

10/05/2022, 16:30

The detection of the cosmic neutrino background (CvB) is an outstanding problem in particle physics and cosmology. We propose a new way to detect CvB via resonant scattering against cosmogenic GZK neutrinos, which leads to an attenuation of the GZK neutrino flux. However, to have any observable effect, we need significant CvB overdensity along the line-of-sight. This might be feasible in...

159. Dirac neutrinos and Neff

Xuheng Luo

10/05/2022, 16:45

We perform a model-independent study of various possibility of Dirac neutrinos that its right-handed component may lead to contributions to the effective number of relativistic neutrino species $N_{eff}$. We obtained constrains on these interactions by using the current and future limits on $N_{eff}$ from CMB experiments.

141. Inelastic neutrino-nucleus and dark matter-nucleus scattering

Wei-Chih Huang

10/05/2022, 17:15

We study inelastic neutrino-nucleus and dark matter(DM)-nucleus scattering using Ar-40 Cs-133, and I-127 nuclei. In particular we use BIGSTICK, a nuclear shell model code, to obtain the structure of the nuclei. We then calculate the inelastic scattering cross section based on two formalism, multipole analysis and Gamow-Teller transition. It concludes that Gamow-Teller operator dominates over...

167. Naturally light Dirac neutrinos from left-right symmetric models

Kaladi Babu

10/05/2022, 17:30

I shall describe how naturally light Dirac neutrinos arise in a class of left-right symmetric theories which also solve the strong CP problem. The flavor structure of these theories will be shown to be consistent with neutrino oscillation data. Future tests of these models will be outlined.

122. Probing non-standard neutrino interactions with low energy neutrino-electron elastic scattering in reactor experiments

Ankur Verma

10/05/2022, 17:45

Reactor experiments provide an excellent platform to investigate the atomic ionization effects induced by the unexplored neutrino interaction channels. Including the atomic effects in our calculations, we study the neutrino-electron scattering by reactor anti-neutrinos in low-energy electron recoil detectors such as Si/Ge in light of neutrino non-standard interactions with leptons. We find...

180. Type III seesaw with R-parity violation in light of mW (CDF)

Nobuchika Okada

10/05/2022, 18:00

Motivated by the recently reported measurement of the W boson mass MW=80.4335±0.0094 GeV by the CDF collaboration, we propose a type III extension of the minimal supersymmetric standard model (MSSM) which also includes an R-parity violating term. Without taking potential SUSY radiative corrections into account, we show that the CDF measurement of MW and the LEP measurement of the ρ parameter...

173. On Perturbative Completions to the Neutrino Option Resolution of the Electroweak Hierarchy Problem

Jim Talbert

10/05/2022, 18:15

I will show how the global symmetries manifest in the Type-I seesaw model can be understood to prohibit (natural) perturbative scale generation in its Majorana mass matrix, and therefore severely limit the types of ultraviolet (UV) completions that may be conceived of for the Neutrino Option (NO) resolution to the Electroweak Hierarchy Problem (Brivio & Trott 2017). After a brief review of the...