FLASY 2022 - 9th Workshop on Flavour Symmetries and Consequences in Accelerators and Cosmology

Session

Parallel Session III.2

30 Jun 2022, 16:45

Conveners

Parallel Session III.2

• Valentina De Romeri

46. Decoherence and Neutrino Oscillations: from Microscopic to Macroscopic

Ting Cheng

30/06/2022, 16:45

We present a generic structure (the layer structure) for decoherence effects in neutrino oscillations by combining the concept of the open quantum system and quantum field theory, which includes and parameterize decoherence effects from quantum mechanical and classical uncertainties. With the help of the layer structure, we classify the former as state decoherence (SD) and the latter phase...

30. Exploring BSM models at Long Baseline neutrino experiments

Alessio Giarnetti (Roma Tre University & INFN)

30/06/2022, 17:00

Standard three-neutrino oscillations are a well known phenomenon; however, the uncertainties on the mixing parameters do not allow us to exclude the possibility of the presence of new physics effects in the lepton sector. Future long-baseline (LBL) accelerator experiments may be able to probe different BSM models in neutrino oscillations. Indeed, these experiments should be able to look at...

38. A novel window into Dirac vs. Majorana nature of neutrinos using CE$\nu$NS experiments

Chandan Hati

30/06/2022, 17:15

In the presence of transition magnetic moments between active and sterile neutrinos, the search for a Primakoff upscattering process at Coherent Elastic Neutrino Nucleus Scattering (CE$\nu$NS) experiments provide very stringent constraints on the neutrino magnetic moment. I will discuss how a radiative upscattering process with a photon emitted in the final state can provide a novel...

82. Correlating Muon g−2 Anomaly with Neutrino Magnetic Moments

Dr Sudip Jana (Max-Planck-Institut für Kernphysik)

30/06/2022, 17:30

We show that the models that induce neutrino magnetic moments while maintaining their small masses naturally also predict observable shifts in the muon anomalous magnetic moment. This shift is of the right magnitude to be consistent with the Brookhaven measurement as well as the recent Fermilab measurement of the muon g−2. This is pointing out the direct correlation between the magnetic moment...

44. Indirect search for sub-GeV dark matter with neutrino telescopes

Shohei Okawa (ICCUB)

30/06/2022, 17:45

We discuss indirect searches for sub-GeV dark matter (DM) that annihilates directly to a neutrino pair or a pair of new bosons subsequently decaying to neutrinos. The neutrino spectrum from the DM annihilation is monochromatic in the former process and a polynomial shape in the latter case. As a benchmark scenario, we consider a gauged U(1)$_{L_\mu-L_\tau}$ model under which a DM field is...

24. A new software to compute MSSM squared amplitudes for particle physics and relic density calculations

Marco PALMIOTTO (Institut de physique des deux infinis Lyon, Université Claude Bernard Lyon 1)

30/06/2022, 18:00

The increasing need of numerical predictions for dark matter models is not always easy to satisfy looking at the software available today. With this work, we present a code to compute 2 to 2 squared scattering amplitudes using MARTY, with all the benefits of having a fully open source C++ code to handle. The numerical library generated in this way has been enriched with additional...

16. An Event Generator For New Physics in $B \to D^* \ell \nu$ decay

Lopamudra Mukherjee (University of Mississippi)

30/06/2022, 18:15

In this talk I am going to present our newly developed event generator tool based on EvtGen that allows us to simulate new physics (NP) signatures in charged current semileptonic $\bar{B}\to D^{*+} \ell^- \bar{\nu}_\ell$ decays. Recent experimental results from Belle, Babar and LHCb have all pointed towards new physics in the weak $b\to c$ transitions which urge for an immediate need of...