Description
Author: Soebur Razzaque
Presenter: Soebur Razzaque
Abstract: KM3NeT is a deep-sea research infrastructure with the main goals of studying neutrinos from the atmosphere and from the cosmos. A dense array of optical detectors, called KM3NeT/ORCA, currently being deployed in the Mediterranean Sea off the coast of Toulon, France, will measure fundamental neutrino properties primarily using the atmospheric neutrinos. A sparser and larger array, called KM3NeT/ARCA is also under construction off the coast of Cape Passero, South-East of Sicily in the Mediterranean Sea, that is monitoring the sky for high-energy neutrinos from the cosmos. Both ORCA and ARCA use sea water as the detection volume where faint tracks of Cherenkov-light emitting particles, created by neutrino interactions, are detected by photo- multiplier tubes.
In this talk I will present the latest results on neutrino physics and astrophysics from the partially constructed KM3NeT/ORCA and KM3NeT/ARCA, covering neutrino mass ordering, nonunitary neutrino mixing, neutrino decays, and particularly the recent detection of an ultra-high-energy neutrino event, dubbed KM3-230213A. I will discuss the main features of this event, as well as the interpretations of the event in the context of the current global scope and the constraints it imposes on models of diffuse flux from astrophysical sources.
