Maurico Bustamante (Ohio State): High-energy astrophysical neutrinos: where do we stand, where do we go?

mercredi 11 mai 2016, 14:00 → 15:00 Europe/Paris

Amphi Charpak (LPNHE)

The era of neutrino astronomy has begun. After decades of detector improvement, IceCube recently discovered neutrinos of astrophysical origin. Energies between 30 TeV and 2 PeV make them the most energetic neutrinos detected. However, their sources remain a mystery: multi-messenger arguments and the lack of correlation with potential, promising source classes, such as blazars and gamma-ray bursts, hint at a non-trivial resolution of this pressing question. I will show how neutrino telescopes detect high-energy astrophysical neutrinos, how observables such as spectral shape and neutrino flavor are inferred, and what are the current status and near-future prospects of the field. I will also touch upon the next frontier in neutrino astrophysics: the detection of cosmogenic, or GZK neutrinos, with EeV energies, created in the interaction of ultra-high-energy cosmic rays and cosmological photon backgrounds.

Lien SEMPARIS http://semparis.lpthe.jussieu.fr/list?type=seminars&key=10981&language=

Transparents 2016-05-11-Bustamante-LPNHE.pdf