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Title: Be 7 solar neutrino measurement with KamLAND

Journal Article · · Physical Review C, Nuclear Physics

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)×109cm₋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. Lastly, utilizing a global three-flavor oscillation analysis, we obtain a total 7Be solar neutrino flux of (5.82±1.02)×109cm₋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; Japanese Ministry of Education, Culture, Sports, Science and Technology; the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan; Stichting FOM in the Netherlands
Contributing Organization:
KamLAND Collaboration
DOE Contract Number:
AC02-05CH11231; FG02-01ER41166; 16002002; 21000001
OSTI ID:
1134245
Report Number(s):
LBNL-6653E; PRVCAN
Journal Information:
Physical Review C, Nuclear Physics, Vol. 92, Issue 5; ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

References (33)

Measurement of the Solar Electron Neutrino Flux with the Homestake Chlorine Detector journal March 1998
GALLEX solar neutrino observations: results for GALLEX IV journal February 1999
Complete results for five years of GNO solar neutrino observations journal June 2005
Measurement of the solar neutrino capture rate with gallium metal. III. Results for the 2002–2007 data-taking period journal July 2009
Solar neutrino measurements in Super-Kamiokande-I journal June 2006
Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory journal May 2010
Independent Measurement of the Total Active B 8 Solar Neutrino Flux Using an Array of He 3 Proportional Counters at the Sudbury Neutrino Observatory journal September 2008
Direct Measurement of the Be 7 Solar Neutrino Flux with 192 Days of Borexino Data journal August 2008
Neutrino oscillations and stellar collapse journal November 1979
Reactor on-off antineutrino measurement with KamLAND journal August 2013
Final results of Borexino Phase-I on low-energy solar neutrino spectroscopy journal June 2014
Measurement of the 8 B solar neutrino flux with the KamLAND liquid scintillator detector journal September 2011
Solar Models with Accretion. i. Application to the Solar Abundance Problem journal November 2011
Laboratory studies on the removal of radon-born lead from KamLAND׳s organic liquid scintillator
  • Keefer, G.; Grant, C.; Piepke, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 769 https://doi.org/10.1016/j.nima.2014.09.050
journal January 2015
A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector
  • Banks, T. I.; Freedman, S. J.; Wallig, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 769 https://doi.org/10.1016/j.nima.2014.09.068
journal January 2015
The KamLAND full-volume calibration system journal April 2009
Spatial and Temporal Variations of Atmospheric 85Kr Observed During 1995-2001 in Japan: Estimation of Atmospheric 85Kr Inventory in the Northern Hemisphere journal January 2004
Production of radioactive isotopes through cosmic muon spallation in KamLAND journal February 2010
Muon-induced production of radioactive isotopes in scintillation detectors journal August 2000
Solar neutrinos: Radiative corrections in neutrino-electron scattering experiments journal June 1995
Das β-spektrum des RaE journal March 1962
The Chemical Composition of the Sun journal September 2009
Measurement of the 8 B solar neutrino flux with the KamLAND liquid scintillator detector text January 2011
Reactor on-off antineutrino measurement with KamLAND text January 2013
Production of radioactive isotopes through cosmic muon spallation in KamLAND text January 2010
Production of Radioactive Isotopes through Cosmic Muon Spallation in KamLAND text January 2009
Low Energy Threshold Analysis of the Phase I and Phase II Data Sets of the Sudbury Neutrino Observatory text January 2009
Solar models with accretion. I. Application to the solar abundance problem text January 2011
Measurement of the 8B Solar Neutrino Flux with the KamLAND Liquid Scintillator Detector text January 2011
A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector text January 2014
Solar Neutrinos: Radiative Corrections in Neutrino-Electron Scattering Experiments text January 1995
Complete results for five years of GNO solar neutrino observations text January 2005
Solar neutrino measurements in Super-Kamiokande-I text January 2005

Cited By (10)

DARWIN: towards the ultimate dark matter detector journal November 2016
Constraining sterile neutrino cosmology with terrestrial oscillation experiments journal July 2019
Detection of sub-GeV dark matter and solar neutrinos via chemical-bond breaking journal March 2017
Highlight Talk from Super-Kamiokande journal January 2019
DARWIN: towards the ultimate dark matter detector text January 2016
Constraints on neutrino lifetime from the Sudbury Neutrino Observatory text 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

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