$^7$Be Solar Neutrino Measurement with KamLAND - INSPIRE

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$^7$ Be Solar Neutrino Measurement with KamLAND

KamLAND

Collaboration

•

A. Gando
(
- Tohoku U.
)

May 23, 2014

8 pages

Published in:

Phys.Rev.C 92 (2015) 5, 055808

Published: Nov 30, 2015

e-Print:

1405.6190 [hep-ex]

DOI:

10.1103/PhysRevC.92.055808

PDG:

\phi _{\mathit ES}

{}^{7}\mathrm {Be}

Experiments:

KamLAND

View in:

reference search102 citations

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Abstract: (APS)

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.

Note:

8 pages, 6 figures, submitted to Phys. Rev. C

26.65.+t
14.60.Pq
25.40.Sc
neutrino: solar
neutrino: flux: measured
neutrino: oscillation
model: solar
beryllium
flavor: 3
flavor: oscillation

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