HET Seminar

"HE Neutrinos beyond Standard Model: steriles and secret interactions"

Presented by Ninetta Saviano, U. Naples

Wednesday, December 2, 2020, 2:30 pm — Videoconference / Virtual Event (see link below)

Abstract: Ultra High Energy cosmogenic neutrinos may represent a unique opportunity


to unveil possible new physics interactions in the neutrino sector. At


this regard, we have investigated the effects on high and ultrahigh energy


active neutrino fluxes due to active-sterile secret interactions mediated


by a new pseudoscalar particle. These interactions become relevant at


very different energy scales depending on the masses of the scalar


mediator and of sterile neutrino. As a consequence, we have found


interesting phenomenological implications on two benchmark fluxes we


consider, namely an astrophysical power law flux, in the range below 100


PeV, and a cosmogenic flux, in the Ultrahigh energy range.

Hosted by: Julia Gehrlein

Join Videoconference More Information

16005  |  INT/EXT  |  Events Calendar