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Be 7 solar neutrino measurement with KamLAND
Authors
TI Banks
BE Berger
+69 more
T Bloxham
MP Decowski
JA Detwiler
KE Downum
D Dwyer
Y Efremenko
S Enomoto
SJ Freedman
BK Fujikawa
A Gando
Y Gando
C Grant
K Han
H Hanakago
K Heeger
GA Horton-Smith
L Hsu
K Ichimura
H Ikeda
K Inoue
K Ishidoshiro
H Ishikawa
Y Kamyshkov
HJ Karwowski
G Keefer
Y Kishimoto
M Koga
A Kozlov
CE Lane
JG Learned
J Maricic
DM Markoff
R Matsuda
S Matsuda
C Mauger
DW McKee
RD McKeown
T Miletic
T Mitsui
D Motoki
H Murayama
K Nakajima
K Nakamura
T O'Donnell
A Obata
A Oki
Y Oki
M Otani
O Perevozchikov
A Piepke
M Sakai
I Shimizu
J Shirai
HM Steiner
A Suzuki
Y Takemoto
K Tamae
A Tang
K Tolich
W Tornow
K Ueshima
H Watanabe
LA Winslow
BD Xu
S Yamada
Y Yamauchi
H Yoshida
S Yoshida
C Zhang
Publication date
1 January 2015
Publisher
eScholarship, University of California
Doi
Cite
Abstract
© 2015 American Physical Society. We report a measurement of the neutrino-electron elastic scattering rate of 862 keV Be7 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 Be7 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. Utilizing a global three-flavor oscillation analysis, we obtain a total Be7 solar neutrino flux of (5.82±1.02)×109cm-2s-1, which is consistent with the standard solar model predictions
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Last time updated on 26/08/2021
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eScholarship - University of California
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Last time updated on 25/12/2021