31 May 2023 to 2 June 2023
CERN
Europe/Zurich timezone

Impact of Neutrino Decay on the Cosmic Neutrino Background

31 May 2023, 16:15
5m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
particle astrophysics (including cosmic rays, neutrinos, nuclear astrophysics) Particle Astrophysics

Speaker

Leonardo Jose Ferreira Leite (University of Campinas UNICAMP (BR))

Description

In this work, we explore the consequences of neutrino decay facilitated by a neutral scalar on possible cosmic neutrino background (CνB) detection in the future, especially in the PTOLEMY experiment. We analyze the distortion of the expected event spectrum as a function of the singlet mass and Yukawa couplings, and we consider both a three-neutrino scenario and a scenario with an extra sterile neutrino.

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Primary authors

Joachim Kopp (CERN) Leonardo Jose Ferreira Leite (University of Campinas UNICAMP (BR))

Presentation materials