© 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

Banks, TI

Berger, BE

Bloxham, T

Decowski, MP

Detwiler, JA

Downum, KE

Dwyer, D

Efremenko, Y

Enomoto, S

Freedman, SJ

Fujikawa, BK

Gando, A

Gando, Y

Grant, C

Han, K

Hanakago, H

Heeger, K

Horton-Smith, GA

Hsu, L

Ichimura, K

Ikeda, H

Inoue, K

Ishidoshiro, K

Ishikawa, H

Kamyshkov, Y

Karwowski, HJ

Keefer, G

Kishimoto, Y

Koga, M

Kozlov, A

Lane, CE

Learned, JG

Maricic, J

Markoff, DM

Matsuda, R

Matsuda, S

Mauger, C

McKee, DW

McKeown, RD

Miletic, T

Mitsui, T

Motoki, D

Murayama, H

Nakajima, K

Nakamura, K

O'Donnell, T

Obata, A

Oki, A

Oki, Y

Otani, M

Perevozchikov, O

Piepke, A

Sakai, M

Shimizu, I

Shirai, J

Steiner, HM

Suzuki, A

Takemoto, Y

Tamae, K

Tang, A

Tolich, K

Tornow, W

Ueshima, K

Watanabe, H

Winslow, LA

Xu, BD

Yamada, S

Yamauchi, Y

Yoshida, H

Yoshida, S

Zhang, C

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) × 10 9 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 ν e 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) × 10 9 cm -2s -1, which is consistent with the standard solar model predictions

Gando, A.

Gando, Y.

Hanakago, H.

Ikeda, H.

Inoue, K.

Ishidoshiro, K.

Ishikawa, H.

Kishimoto, Y.

Koga, M.

Matsuda, R.

Matsuda, S.

Mitsui, T.

Motoki, D.

Nakajima, K.

Nakamura, K.

Obata, A.

Oki, A.

Oki, Y.

Otani, M.

Shimizu, I.

Shirai, J.

Suzuki, A.

Tamae, K.

Ueshima, K.

Watanabe, H.

Xu, B. D.

Yamada, S.

Yamauchi, Y.

Yoshida, H.

Kozlov, A.

Takemoto, Y.

Yoshida, S.

Grant, C.

Keefer, G.

McKee, D. W.

Piepke, A.

Banks, T. I.

Bloxham, T.

Freedman, S. J.

Fujikawa, B. K.

Han, K.

Hsu, L.

Ichimura, K.

Murayama, H.

O'Donnell, T.

Steiner, H. M.

Winslow, L. A.

Dwyer, D.

Mauger, C.

McKeown, R. D.

Zhang, C.

Berger, B. E.

Lane, C. E.

Maricic, J.

Miletic, T.

Learned, J. G.

Sakai, M.

Horton-Smith, G. A.

Tang, A.

Downum, K. E.

Tolich, K.

Efremenko, Y.

Kamyshkov, Y.

Perevozchikov, O.

Karwowski, H. J.

Markoff, D. M.

Tornow, W.

Detwiler, J. A.

Enomoto, S.

Heeger, K.

Decowski, M. P.

Carolina Digital Repository

Be 7 solar neutrino measurement with KamLAND

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

eScholarship - University of California

Be7 solar neutrino measurement with KamLAND

https://cdr.lib.unc.edu/downloads/w0892k92j

Be 7 solar neutrino measurement with KamLAND

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Carolina Digital Repository

eScholarship - University of California