Title: Be7 solar neutrino measurement with KamLAND

Journal Article · · Physical Review C, Nuclear Physics

In this article, we report a measurement of the neutrino-electron elastic scattering rate of 862 keV 7Be solar neutrinos based on a 165.4 kt d exposure of KamLAND. The observed rate is 582 ± 94 (kt d)-1, which corresponds to an 862-keV 7Be solar neutrino flux of (3.26 ± 0.52) × 109 cm-2s-1, assuming a pure electron-flavor flux. Comparing this flux with the standard solar model prediction and further assuming three-flavor mixing, a νe survival probability of 0.66 ± 0.15 is determined from the KamLAND data. Utilizing a global three-flavor oscillation analysis, we obtain a total 7Be solar neutrino flux of (5.82 ± 1.02) × 109 cm-2s-1, which is consistent with the standard solar model predictions.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Organization:
KamLAND Collaboration
Grant/Contract Number:
AC02-05CH11231; FG02-01ER41166
OSTI ID:
1378662
Journal Information:
Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 5 Vol. 92; ISSN 0556-2813; ISSN PRVCAN
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (15)

DARWIN: towards the ultimate dark matter detector journal November 2016
Constraining sterile neutrino cosmology with terrestrial oscillation experiments journal July 2019
Presupernova neutrinos in large dark matter direct detection experiments journal February 2020
Projected WIMP sensitivity of the LUX-ZEPLIN dark matter experiment journal March 2020
Detection of sub-GeV dark matter and solar neutrinos via chemical-bond breaking journal March 2017
Constraints on neutrino lifetime from the Sudbury Neutrino Observatory journal February 2019
Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen journal August 2016
Precision Analysis of the Xe 136 Two-Neutrino β β Spectrum in KamLAND-Zen and Its Impact on the Quenching of Nuclear Matrix Elements journal May 2019
Highlight Talk from Super-Kamiokande journal January 2019
Search for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen text January 2016
Detection of sub-GeV Dark Matter and Solar Neutrinos via Chemical-Bond Breaking text January 2016
Projected WIMP sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment text January 2018
Constraining Sterile Neutrino Cosmology with Terrestrial Oscillation Experiments text January 2019
DARWIN: towards the ultimate dark matter detector text January 2016
Constraints on neutrino lifetime from the Sudbury Neutrino Observatory text January 2019

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