Neutrino oscillations with atmospheric neutrinos at large liquid argon TPCs

被引：1

作者：

Chatterjee, Animesh ^{[1
,2
]}

De Roeck, Albert ^{[1
]}

机构：

[1] European Org Nucl Res CERN, CH-1211 Geneva 23, Switzerland

[2] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

PHYSICS LETTERS B | 2024年 / 855卷

关键词：

Sterile neutrino; Mass ordering; Liquid argon;

D O I：

10.1016/j.physletb.2024.138838

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose to study atmospheric neutrino interactions with a unique event topology to distinguish neutrinos and anti-neutrinos using a liquid argon time projection chamber in an experiment such as DUNE. The detection of charged-current 1 proton (CC1P) and charged-current no proton (CC0P) events will allow us to access neutrino oscillation physics complementary to accelerator-based beam neutrinos. Assuming maximal CP violation (delta(CP) =pi/2) as the true hypothesis, our analysis shows that it is possible to disfavour CP conservation delta(CP) =0 (or pi) with more than 2 sigma (approximate to 1.6 sigma) with a data sample of 140 kt-yr of atmospheric neutrinos in the DUNE detector. Our analysis also shows that assuming normal mass-ordering as the true hypothesis, the sensitivity to the opposite mass-ordering can be disfavoured with a significance close to 4 sigma and an octant of theta(23) sensitivity with more than 2 sigma both for a true lower octant (theta(23)=41.) and higher octant (theta(23)=49 degrees) value.

引用

页数：6

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