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Title: Constraints on the solar Δ m 2 using Daya Bay and RENO data

Abstract

Here, we demonstrate that the currently running short baseline reactor experiments, especially Daya Bay, can put a significant upper bound on $$\Delta m^2_{21}$$. This novel approach to determining $$\Delta m^2_{21}$$ can be performed with the current data of both Daya Bay \& RENO and provides additional information on $$\Delta m^2_{21}$$ in a different $L/E$ range ($$\sim$$ 0.5 km/MeV) for an important consistency check on the 3 flavor massive neutrino paradigm. Upper limits by Daya Bay and RENO and a possible lower limit from Daya Bay, before the end of 2020, will be the only new information on this important quantity until the medium baseline reactor experiment, JUNO, gives a very precise measurement in the middle of the next decade. In this study $$\theta_{12}$$ value is fixed since its impact on the $$\Delta m^2_{21}$$ measurement is relatively small as discussed in the Appendix.

Authors:
;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1496498
Alternate Identifier(s):
OSTI ID: 1478021
Report Number(s):
arXiv:1808.09150; FERMILAB-PUB-18-392-T
Journal ID: ISSN 2470-0010; PRVDAQ; 033012
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 99 Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Seo, Seon-Hee, and Parke, Stephen J. Constraints on the solar Δ m 2 using Daya Bay and RENO data. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.99.033012.
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Seo, Seon-Hee, & Parke, Stephen J. Constraints on the solar Δ m 2 using Daya Bay and RENO data. United States. https://doi.org/10.1103/PhysRevD.99.033012
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Seo, Seon-Hee, and Parke, Stephen J. Mon . "Constraints on the solar Δ m 2 using Daya Bay and RENO data". United States. https://doi.org/10.1103/PhysRevD.99.033012.
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@article{osti_1496498,
title = {Constraints on the solar Δ m 2 using Daya Bay and RENO data},
author = {Seo, Seon-Hee and Parke, Stephen J.},
abstractNote = {Here, we demonstrate that the currently running short baseline reactor experiments, especially Daya Bay, can put a significant upper bound on $\Delta m^2_{21}$. This novel approach to determining $\Delta m^2_{21}$ can be performed with the current data of both Daya Bay \& RENO and provides additional information on $\Delta m^2_{21}$ in a different $L/E$ range ($\sim$ 0.5 km/MeV) for an important consistency check on the 3 flavor massive neutrino paradigm. Upper limits by Daya Bay and RENO and a possible lower limit from Daya Bay, before the end of 2020, will be the only new information on this important quantity until the medium baseline reactor experiment, JUNO, gives a very precise measurement in the middle of the next decade. In this study $\theta_{12}$ value is fixed since its impact on the $\Delta m^2_{21}$ measurement is relatively small as discussed in the Appendix.},
doi = {10.1103/PhysRevD.99.033012},
journal = {Physical Review D},
number = 3,
volume = 99,
place = {United States},
year = {Mon Feb 25 00:00:00 EST 2019},
month = {Mon Feb 25 00:00:00 EST 2019}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.99.033012
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Citation Metrics:
Cited by: 3 works
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Figures / Tables:

Figure 1 Figure 1: The exact electron antineutrino disappearance probability (solid) as a function of L/E as Δm$2\atop{21}$ is varied in multiples [lines labeled (0,...,6,10)] of the KamLAND value of 7.5 × 10−5 eV2. θ13 is also varied, see Eq. (11), to keep the same disappearance probability for L/E < 0.2 km/MeV.more » The red points with error bars, are the statistical uncertainties only, for a detector at 1.6 km from a reactor core with an exposure such that there are 900k events in this detector assuming the KamLAND value for Δm$2\atop{21}$. This number of events corresponds to 3000 days of Daya Bay data, see Table I. This figure demonstrates that the Daya Bay experiment can put an upper limits on Δm$2\atop{21}$ of approximately 2 times the KamLAND central value or smaller, assuming the systematic uncertainties are smaller than the statistical uncertainties shown here. The dotted line is the two term approximation to the disappearance probability, see Eq. (9).« less
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Works referenced in this record:

Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment
journal, October 2016

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journal, March 2016

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journal, February 2016

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journal, June 2018

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    Works referencing / citing this record:

    Constraint on the solar Δ m 2 using 4000 days of short baseline reactor neutrino data
    journal, December 2019

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      Figures / Tables found in this record:

      Figure 1 (p. 3)figure
      Table I (p. 3)table
      Figure 2 (p. 4)figure
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