Opin vísindi

Sensitivity to light sterile neutrinos at ESSnuSB

Sensitivity to light sterile neutrinos at ESSnuSB

Title: Sensitivity to light sterile neutrinos at ESSnuSB
Author: Ghosh, Monojit
Ohlsson, Tommy   orcid.org/0000-0002-3525-8349
Rosauro-Alcaraz, Salvador
Date: 2020-03-01
Language: English
Scope: 26
University/Institute: Háskóli Íslands
University of Iceland
School: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Department: Raunvísindastofnun (HÍ)
Science Institute (UI)
Series: Journal of High Energy Physics;2020(3)
ISSN: 1029-8479
DOI: 10.1007/JHEP03(2020)026
Subject: Beyond Standard Model; CP violation; Neutrino Physics; Eðlisfræði; Atómfræði
URI: https://hdl.handle.net/20.500.11815/2426

Show full item record


Ghosh, M., Ohlsson, T. & Rosauro-Alcaraz, S. Sensitivity to light sterile neutrinos at ESSnuSB. Journal of High Energy Physics 2020, 26 (2020). https://doi.org/10.1007/JHEP03(2020)026


We present a comprehensive analysis in the 3+1 active-sterile neutrino oscillation scenario for the sensitivity of the ESSnuSB experiment in the presence of light sterile neutrinos assuming both a far (FD) and a near (ND) detector. Our analysis show that when the ND is included, the results are significantly different compared to the ones obtained with the FD only. We find that the capability of ESSnuSB to constrain the sterile mixing parameters is sin2 2θμe∼ 10−4 for ∆m2 = 1 eV2 if the ND is included and it becomes sin2 2θμe∼ 10−2 without the ND. Furthermore, we show that the sensitivity can go down to sin2 2θμe∼ 10−3 for the most conservative choice of the systematics on the ND. Comparing the sensitivity with T2HK, T2HKK, and DUNE by considering the FD only, we find that the sensitivity of ESSnuSB is smaller for most of the parameter space. Studying the CP violation sensitivity, we find that if the ND is included, it can be larger in the 3+1 scenario than in the standard one. However, if the ND is not included, the sensitivity is smaller compared to the one in the standard scenario. We also find that the CP violation sensitivity due to δ13 is larger compared to the one induced by δ24. The sensitivities are slightly better for the dominant neutrino running ratio of ESSnuSB.


Publisher's version (útgefin grein)


This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited

Files in this item

This item appears in the following Collection(s)