ECAP Seminar: Mauricio Bustamante

High-energy cosmic neutrinos probe fundamental physics at scales of energy and distance otherwise unreachable, where new physics may manifest. Since the discovery of TeV-PeV astrophysical neutrinos in 2013, we have explored this progressively more broadly and with increasing precision, thanks to a growing number of detected neutrinos and to improvements in reconstruction and analysis techniques. By means of illustration, I will survey the rich landscape of high-energy physics with cosmic neutrinos, from the perspectives of theory and experiment. I will also touch upon new opportunities made possible by the recent discovery of an ultra-high-energy neutrino, with about 200 PeV, by KM3NeT—with a warning.  Looking ahead, I will show two prospects for transformative change in the next decade, driven by new, upcoming neutrino telescopes: a boost in the detection rate of TeV-PeV neutrinos and the possible detection of more ultra-high-energy neutrinos.