We are delighted to notice that there we will have a seminar talk about neutrino physics with Dr.Nafis Rezwan Khan Chowdhury, from Instituto de Física Corpuscular (IFIC), València
Title : Neutrinos beneath the waves: In search of Non-Standard Neutrino Interactions
Speaker : Dr.Nafis Rezwan Khan Chowdhury
Date & time : 8 am, 22nd of January, 2021.
Place : Zoom meeting
The ANTARES neutrino telescope and its next-generation successor, KM3NeT, located at the abyss of the Mediterranean sea, have been designed to study neutrinos (and antineutrinos) from a variety of sources over a wide range of energies and path lengths. One of the primary focuses of these experiments is to observe the Earth matter effects stemming from the energy and zenith angle dependence of atmospheric neutrinos in the multi-GeV range. The study of atmospheric neutrinos is instrumental in addressing some of the outstanding issues in neutrino oscillation physics, especially the fundamental question of the neutrino mass ordering, as well as probing new physics scenarios beyond the Standard Model (SM).
In this talk, I will present the physics (ORCA in what follows) to measure sub-dominant effects in atmospheric neutrino oscillations vis-a`-vis Neutrino Non-Standard Interactions (NSIs). A likelihood-based search for NSIs with 10 years of atmospheric muon-neutrino data recorded with ANTARES will be reported and sensitivity projections for ORCA based on realistic detector simulations will be shown. The phenomenological consequence of NSIs on the neutrino mass ordering (NMO) measurement at ORCA will be addressed as well. Remarkably, the bounds obtained with ANTARES in the NSI μ − τ sector represent the most stringent limits to date.