Determination of neutrino mass ordering from Supernova neutrinos with T2HK and DUNE

Panda, Papia; Ghosh, Manojit; Mohanta, Rukmani (2023) Determination of neutrino mass ordering from Supernova neutrinos with T2HK and DUNE. Journal of Cosmology and Astroparticle Physics, 2023 (10). ISSN 1475-7516

PDF - Submitted Version - article Download (822kB)

Abstract

In this paper, we study the possibility of determining the neutrino mass ordering from the future supernova neutrino events at the DUNE and T2HK detectors. We estimate the expected number of neutrino event rates from a future supernova explosion assuming Garching flux model corresponding to different processes that are responsible for detecting the supernova neutrinos at these detectors. We present our results in the form of χ2, as a function of supernova distance. For a systematic uncertainty of 5\% in normalisation as well as energy calibration error, our results show that, the neutrino mass ordering can be determined at 5 σ C.L. if the supernova explosion occurs at a distance of 42.7 kpc for T2HK and at a distance of 15.2 kpc for DUNE. Our results also show that the sensitivity of DUNE and T2HK get affected by the systematic uncertainties for the smaller supernova distances. Further, we show that in both DUNE and T2HK, the sensitivity gets deteriorated to some extent due to presence of energy smearing of the neutrino events. This occurs because of the reconstruction of the neutrino energy from the energy-momentum measurement of the outgoing leptons at the detector.

Item Type:	Article
Uncontrolled Keywords:	core-collapse supernovae ; neutrino detectors ; neutrino experiments ; supernova neutrinos
Subjects:	NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Division of Experimental Physics Center of Excellence for Advanced Materials and Sensing Devices
Depositing User:	Manojit Ghosh
Date Deposited:	13 Jan 2025 08:51
URI:	http://fulir.irb.hr/id/eprint/9417
DOI:	10.1088/1475-7516/2023/10/033

Actions (login required)

View Item