Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector

S. Abe; K. Furuno; A. Gando; Y. Gando; K. Ichimura; H. Ikeda; K. Inoue; Y. Kibe; W. Kimura; Y. Kishimoto; M. Koga; Y. Minekawa; T. Mitsui; T. Morikawa; N. Nagai; K. Nakajima; K. Nakamura; M. Nakamura; K. Narita; I. Shimizu; Y. Shimizu; J. Shirai; F. Suekane; A. Suzuki; H. Takahashi; N. Takahashi; Y. Takemoto; K. Tamae; H. Watanabe; B. D. Xu; H. Yabumoto; E. Yonezawa; H. Yoshida; S. Yoshida; S. Enomoto; A. Kozlov; H. Murayama; C. Grant; G. Keefer; D. McKee; A. Piepke; T. I. Banks; T. Bloxham; J. A. Detwiler; S. J. Freedman; B. K. Fujikawa; K. Han; R. Kadel; T. O'Donnell; H. M. Steiner; L. A. Winslow; D. A. Dwyer; C. Mauger; R. D. McKeown; C. Zhang; B. E. Berger; C. E. Lane; J. Maricic; T. Miletic; M. Batygov; J. G. Learned; S. Matsuno; S. Pakvasa; M. Sakai; G. A. Horton-Smith; A. Tang; K. E. Downum; G. Gratta; K. Tolich; Y. Efremenko; Y. Kamyshkov; O. Perevozchikov; H. J. Karwowski; D. M. Markoff; W. Tornow; K. M. Heeger; F. Piquemal; J. S. Ricol; M. P. Decowski

doi:10.1103/PhysRevC.84.035804

Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector

S. Abe, K. Furuno, A. Gando, Y. Gando, K. Ichimura, H. Ikeda, K. Inoue, Y. Kibe, W. Kimura, Y. Kishimoto, M. Koga, Y. Minekawa, T. Mitsui, T. Morikawa, N. Nagai, K. Nakajima, K. Nakamura, M. Nakamura, K. Narita, I. ShimizuY. Shimizu, J. Shirai, F. Suekane, A. Suzuki, H. Takahashi, N. Takahashi, Y. Takemoto, K. Tamae, H. Watanabe, B. D. Xu, H. Yabumoto, E. Yonezawa, H. Yoshida, S. Yoshida, S. Enomoto, A. Kozlov, H. Murayama, C. Grant, G. Keefer, D. McKee, A. Piepke, T. I. Banks, T. Bloxham, J. A. Detwiler, S. J. Freedman, B. K. Fujikawa, K. Han, R. Kadel, T. O'Donnell, H. M. Steiner, L. A. Winslow, D. A. Dwyer, C. Mauger, R. D. McKeown, C. Zhang, B. E. Berger, C. E. Lane, J. Maricic, T. Miletic, M. Batygov, J. G. Learned, S. Matsuno, S. Pakvasa, M. Sakai, G. A. Horton-Smith, A. Tang, K. E. Downum, G. Gratta, K. Tolich, Y. Efremenko, Y. Kamyshkov, O. Perevozchikov, H. J. Karwowski, D. M. Markoff, W. Tornow, K. M. Heeger, F. Piquemal, J. S. Ricol, M. P. Decowski

Research output: Contribution to journal › Article › peer-review

74 Scopus citations

Abstract

We report a measurement of the neutrino-electron elastic scattering rate from 8B solar neutrinos based on a 123 kton-day exposure of KamLAND. The background-subtracted electron recoil rate, above a 5.5-MeV analysis threshold is 1.49 ± 0.14(stat) ± 0.17(syst) events per kton-day. Interpreted as due to a pure electron flavor flux with a 8B neutrino spectrum, this corresponds to a spectrum integrated flux of 2.77 ± 0.26(stat) ± 0.32(syst) ×106 cm^-2s^-1. The analysis threshold is driven by 208Tl present in the liquid scintillator, and the main source of systematic uncertainty is due to background from cosmogenic 11Be. The measured rate is consistent with existing measurements and with standard solar model predictions which include matter-enhanced neutrino oscillation.

Original language	English (US)
Article number	035804
Journal	Physical Review C - Nuclear Physics
Volume	84
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.84.035804
State	Published - Sep 13 2011
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevC.84.035804

Cite this

Abe, S., Furuno, K., Gando, A., Gando, Y., Ichimura, K., Ikeda, H., Inoue, K., Kibe, Y., Kimura, W., Kishimoto, Y., Koga, M., Minekawa, Y., Mitsui, T., Morikawa, T., Nagai, N., Nakajima, K., Nakamura, K., Nakamura, M., Narita, K., ... Decowski, M. P. (2011). Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector. Physical Review C - Nuclear Physics, 84(3), Article 035804. https://doi.org/10.1103/PhysRevC.84.035804

Abe, S, Furuno, K, Gando, A, Gando, Y, Ichimura, K, Ikeda, H, Inoue, K, Kibe, Y, Kimura, W, Kishimoto, Y, Koga, M, Minekawa, Y, Mitsui, T, Morikawa, T, Nagai, N, Nakajima, K, Nakamura, K, Nakamura, M, Narita, K, Shimizu, I, Shimizu, Y, Shirai, J, Suekane, F, Suzuki, A, Takahashi, H, Takahashi, N, Takemoto, Y, Tamae, K, Watanabe, H, Xu, BD, Yabumoto, H, Yonezawa, E, Yoshida, H, Yoshida, S, Enomoto, S, Kozlov, A, Murayama, H, Grant, C, Keefer, G, McKee, D, Piepke, A, Banks, TI, Bloxham, T, Detwiler, JA, Freedman, SJ, Fujikawa, BK, Han, K, Kadel, R, O'Donnell, T, Steiner, HM, Winslow, LA, Dwyer, DA, Mauger, C, McKeown, RD, Zhang, C, Berger, BE, Lane, CE, Maricic, J, Miletic, T, Batygov, M, Learned, JG, Matsuno, S, Pakvasa, S, Sakai, M, Horton-Smith, GA, Tang, A, Downum, KE, Gratta, G, Tolich, K, Efremenko, Y, Kamyshkov, Y, Perevozchikov, O, Karwowski, HJ, Markoff, DM, Tornow, W, Heeger, KM, Piquemal, F, Ricol, JS & Decowski, MP 2011, 'Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector', Physical Review C - Nuclear Physics, vol. 84, no. 3, 035804. https://doi.org/10.1103/PhysRevC.84.035804

@article{7b20aae4f4f44b1dafd5484f12bd00ab,

title = "Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector",

abstract = "We report a measurement of the neutrino-electron elastic scattering rate from 8B solar neutrinos based on a 123 kton-day exposure of KamLAND. The background-subtracted electron recoil rate, above a 5.5-MeV analysis threshold is 1.49 ± 0.14(stat) ± 0.17(syst) events per kton-day. Interpreted as due to a pure electron flavor flux with a 8B neutrino spectrum, this corresponds to a spectrum integrated flux of 2.77 ± 0.26(stat) ± 0.32(syst) ×106 cm-2s-1. The analysis threshold is driven by 208Tl present in the liquid scintillator, and the main source of systematic uncertainty is due to background from cosmogenic 11Be. The measured rate is consistent with existing measurements and with standard solar model predictions which include matter-enhanced neutrino oscillation.",

author = "S. Abe and K. Furuno and A. Gando and Y. Gando and K. Ichimura and H. Ikeda and K. Inoue and Y. Kibe and W. Kimura and Y. Kishimoto and M. Koga and Y. Minekawa and T. Mitsui and T. Morikawa and N. Nagai and K. Nakajima and K. Nakamura and M. Nakamura and K. Narita and I. Shimizu and Y. Shimizu and J. Shirai and F. Suekane and A. Suzuki and H. Takahashi and N. Takahashi and Y. Takemoto and K. Tamae and H. Watanabe and Xu, {B. D.} and H. Yabumoto and E. Yonezawa and H. Yoshida and S. Yoshida and S. Enomoto and A. Kozlov and H. Murayama and C. Grant and G. Keefer and D. McKee and A. Piepke and Banks, {T. I.} and T. Bloxham and Detwiler, {J. A.} and Freedman, {S. J.} and Fujikawa, {B. K.} and K. Han and R. Kadel and T. O'Donnell and Steiner, {H. M.} and Winslow, {L. A.} and Dwyer, {D. A.} and C. Mauger and McKeown, {R. D.} and C. Zhang and Berger, {B. E.} and Lane, {C. E.} and J. Maricic and T. Miletic and M. Batygov and Learned, {J. G.} and S. Matsuno and S. Pakvasa and M. Sakai and Horton-Smith, {G. A.} and A. Tang and Downum, {K. E.} and G. Gratta and K. Tolich and Y. Efremenko and Y. Kamyshkov and O. Perevozchikov and Karwowski, {H. J.} and Markoff, {D. M.} and W. Tornow and Heeger, {K. M.} and F. Piquemal and Ricol, {J. S.} and Decowski, {M. P.}",

year = "2011",

month = sep,

day = "13",

doi = "10.1103/PhysRevC.84.035804",

language = "English (US)",

volume = "84",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector

AU - Abe, S.

AU - Furuno, K.

AU - Gando, A.

AU - Gando, Y.

AU - Ichimura, K.

AU - Ikeda, H.

AU - Inoue, K.

AU - Kibe, Y.

AU - Kimura, W.

AU - Kishimoto, Y.

AU - Koga, M.

AU - Minekawa, Y.

AU - Mitsui, T.

AU - Morikawa, T.

AU - Nagai, N.

AU - Nakajima, K.

AU - Nakamura, K.

AU - Nakamura, M.

AU - Narita, K.

AU - Shimizu, I.

AU - Shimizu, Y.

AU - Shirai, J.

AU - Suekane, F.

AU - Suzuki, A.

AU - Takahashi, H.

AU - Takahashi, N.

AU - Takemoto, Y.

AU - Tamae, K.

AU - Watanabe, H.

AU - Xu, B. D.

AU - Yabumoto, H.

AU - Yonezawa, E.

AU - Yoshida, H.

AU - Yoshida, S.

AU - Enomoto, S.

AU - Kozlov, A.

AU - Murayama, H.

AU - Grant, C.

AU - Keefer, G.

AU - McKee, D.

AU - Piepke, A.

AU - Banks, T. I.

AU - Bloxham, T.

AU - Detwiler, J. A.

AU - Freedman, S. J.

AU - Fujikawa, B. K.

AU - Han, K.

AU - Kadel, R.

AU - O'Donnell, T.

AU - Steiner, H. M.

AU - Winslow, L. A.

AU - Dwyer, D. A.

AU - Mauger, C.

AU - McKeown, R. D.

AU - Zhang, C.

AU - Berger, B. E.

AU - Lane, C. E.

AU - Maricic, J.

AU - Miletic, T.

AU - Batygov, M.

AU - Learned, J. G.

AU - Matsuno, S.

AU - Pakvasa, S.

AU - Sakai, M.

AU - Horton-Smith, G. A.

AU - Tang, A.

AU - Downum, K. E.

AU - Gratta, G.

AU - Tolich, K.

AU - Efremenko, Y.

AU - Kamyshkov, Y.

AU - Perevozchikov, O.

AU - Karwowski, H. J.

AU - Markoff, D. M.

AU - Tornow, W.

AU - Heeger, K. M.

AU - Piquemal, F.

AU - Ricol, J. S.

AU - Decowski, M. P.

PY - 2011/9/13

Y1 - 2011/9/13

N2 - We report a measurement of the neutrino-electron elastic scattering rate from 8B solar neutrinos based on a 123 kton-day exposure of KamLAND. The background-subtracted electron recoil rate, above a 5.5-MeV analysis threshold is 1.49 ± 0.14(stat) ± 0.17(syst) events per kton-day. Interpreted as due to a pure electron flavor flux with a 8B neutrino spectrum, this corresponds to a spectrum integrated flux of 2.77 ± 0.26(stat) ± 0.32(syst) ×106 cm-2s-1. The analysis threshold is driven by 208Tl present in the liquid scintillator, and the main source of systematic uncertainty is due to background from cosmogenic 11Be. The measured rate is consistent with existing measurements and with standard solar model predictions which include matter-enhanced neutrino oscillation.

AB - We report a measurement of the neutrino-electron elastic scattering rate from 8B solar neutrinos based on a 123 kton-day exposure of KamLAND. The background-subtracted electron recoil rate, above a 5.5-MeV analysis threshold is 1.49 ± 0.14(stat) ± 0.17(syst) events per kton-day. Interpreted as due to a pure electron flavor flux with a 8B neutrino spectrum, this corresponds to a spectrum integrated flux of 2.77 ± 0.26(stat) ± 0.32(syst) ×106 cm-2s-1. The analysis threshold is driven by 208Tl present in the liquid scintillator, and the main source of systematic uncertainty is due to background from cosmogenic 11Be. The measured rate is consistent with existing measurements and with standard solar model predictions which include matter-enhanced neutrino oscillation.

UR - http://www.scopus.com/inward/record.url?scp=80053066463&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053066463&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.84.035804

DO - 10.1103/PhysRevC.84.035804

M3 - Article

AN - SCOPUS:80053066463

SN - 0556-2813

VL - 84

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 035804

ER -

Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this