Aug 20 – 25, 2023
Universität Hamburg
Europe/Berlin timezone

What can the forthcoming large neutrino detectors tell us about flavor transitions of galactic supernova neutrinos?

Aug 23, 2023, 8:30 AM
20m
Hörsaal J (Historic main building)

Hörsaal J

Historic main building

Edmund-Siemers-Allee 1
Parallel session talk Neutrino Physics T04 Neutrino Physics

Speaker

Guey-Lin Lin (National Yang Ming Chiao Tung University)

Description

We present a method to verify Mikheyev-Smirnov-Wolfenstein effect during the propagation of SN neutrinos from the SN core to the Earth. The non-MSW scenario to be distinguished from the MSW one is the
incoherent flavor transition probability for neutrino propagation in the vacuum. Our approach involves studying time evolution of neutrino event rates in liquid Argon, liquid scintillation and water Cherenkov detectors. Using currently available simulations for SN neutrino emissions, the time evolution of $\nu_e{\rm Ar}$ event rates and $\bar{\nu}_e$ inverse beta-decay event rates and the corresponding cumulative event fractions are calculated up to t=100
ms in DUNE, JUNO and Hyper-Kamiokande detectors, respectively. It is shown that the area under the cumulative time distribution curve from t=0 to t=100 ms in each detector and their ratio can be used to discriminate different flavor transition scenarios of SN neutrinos.

Collaboration / Activity individual paper

Primary author

Guey-Lin Lin (National Yang Ming Chiao Tung University)

Co-authors

Prof. Kwang-Chang Lai (Center for General Education, Chang Gung University) Mr Jason Leung (National Yang Ming Chiao Tung University)

Presentation materials