Résumé / Abstract Seminaire_GReCO

"High-energy astrophysical neutrinos: probes of new physics"

M. Bustamante
Departement of Physics, Ohio State University (Columbus, Ohio, Etats-Unis d'Amérique)

High-energy astrophysical neutrinos, recently discovered by IceCube, are fertile ground to test for the presence of new physics. We can look for it at previously unexplored energies -- from tens of TeV to a few PeV,
far beyond the reach of laboratory experiments. Due to cosmological-scale baselines -- Mpc to Gpc -- tiny new physics effects, otherwise unobservable, could, by accumulation, become detectable. These
include, for instance, neutrino decay, violation of fundamental
symmetries, and novel neutrino-neutrino interactions. I will show that
the spectral features and flavor composition of neutrinos can reveal the
presence and type of new physics. Present-day data are already
sensitive to some models. More statistics, improvements in detection
techniques, and detector upgrades will only enhance the sensitivity.

lundi 9 mai 2016 - 11:00
Salle des séminaires Évry Schatzman,
Institut d'Astrophysique de Paris

Page web du séminaire / Seminar's webpage