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Title: Constraint on the solar $Δm^2$ using 4000 days of short baseline reactor neutrino data

Abstract

There is a well known 2$$\sigma$$ tension in the measurements of the solar $$\Delta m^2$$ between KamLAND and SNO/Super-KamioKANDE. Precise determination of the solar $$\Delta m^2$$ is especially important in connection with current and future long baseline $CP$ violation measurements. Seo and Parke points out that currently running short baseline reactor neutrino experiments, Daya Bay and RENO, can also constrain solar $$\Delta m^2$$ value as demonstrated by a GLoBES simulation with a limited systematic uncertainty consideration. In this work, the publicly available data, from Daya Bay (1,958 days) and RENO (2,200 days) are used to constrain the solar $$\Delta m^2$$. Verification of our method through $$\Delta m^2_{ee}$$ and $$\sin^2 \theta_{13}$$ measurements is discussed in Appendix A. Using this verified method, reasonable constraints on the solar $$\Delta m^2$$ are obtained using above Daya Bay and RENO data, both individually and combined. We find that the combined data of Daya Bay and RENO set an upper limit on the solar $$\Delta m^2$$ of 18 $$\times 10^{-5}$$ eV$^2$ at the 95% C.L., including both systematic and statistical uncertainties. This constraint is slightly more than twice the KamLAND value. As this combined result is still statistics limited, even though driven by Daya Bay data, the constraint will improve with the additional running of this experiment.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]
  1. Karlsruher Inst. für Technologie (KIT) (Germany)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Inst. for Basic Science, Daejeon (Korea)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1580143
Alternate Identifier(s):
OSTI ID: 1545081
Report Number(s):
arXiv:1905.09479; FERMILAB-PUB-19-190-T
Journal ID: ISSN 2470-0010; PRVDAQ; oai:inspirehep.net:1736504
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 100; Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Hernandez Cabezudo, Alvaro, Parke, Stephen J., and Seo, Seon-Hee. Constraint on the solar $Δm^2$ using 4000 days of short baseline reactor neutrino data. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.113008.
Hernandez Cabezudo, Alvaro, Parke, Stephen J., & Seo, Seon-Hee. Constraint on the solar $Δm^2$ using 4000 days of short baseline reactor neutrino data. United States. doi:10.1103/PhysRevD.100.113008.
Hernandez Cabezudo, Alvaro, Parke, Stephen J., and Seo, Seon-Hee. Sun . "Constraint on the solar $Δm^2$ using 4000 days of short baseline reactor neutrino data". United States. doi:10.1103/PhysRevD.100.113008.
@article{osti_1580143,
title = {Constraint on the solar $Δm^2$ using 4000 days of short baseline reactor neutrino data},
author = {Hernandez Cabezudo, Alvaro and Parke, Stephen J. and Seo, Seon-Hee},
abstractNote = {There is a well known 2$\sigma$ tension in the measurements of the solar $\Delta m^2$ between KamLAND and SNO/Super-KamioKANDE. Precise determination of the solar $\Delta m^2$ is especially important in connection with current and future long baseline $CP$ violation measurements. Seo and Parke points out that currently running short baseline reactor neutrino experiments, Daya Bay and RENO, can also constrain solar $\Delta m^2$ value as demonstrated by a GLoBES simulation with a limited systematic uncertainty consideration. In this work, the publicly available data, from Daya Bay (1,958 days) and RENO (2,200 days) are used to constrain the solar $\Delta m^2$. Verification of our method through $\Delta m^2_{ee}$ and $\sin^2 \theta_{13}$ measurements is discussed in Appendix A. Using this verified method, reasonable constraints on the solar $\Delta m^2$ are obtained using above Daya Bay and RENO data, both individually and combined. We find that the combined data of Daya Bay and RENO set an upper limit on the solar $\Delta m^2$ of 18 $\times 10^{-5}$ eV$^2$ at the 95% C.L., including both systematic and statistical uncertainties. This constraint is slightly more than twice the KamLAND value. As this combined result is still statistics limited, even though driven by Daya Bay data, the constraint will improve with the additional running of this experiment.},
doi = {10.1103/PhysRevD.100.113008},
journal = {Physical Review D},
number = 11,
volume = 100,
place = {United States},
year = {2019},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.100.113008

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