Search for extraterrestrial antineutrino sources with the KamLAND detector

A. Gando, Y. Gando, K. Ichimura, H. Ikeda, K. Inoue, Y. Kibe, Y. Kishimoto, M. Koga, Y. Minekawa, T. Mitsui, T. Morikawa, N. Nagai, K. Nakajima, K. Nakamura, K. Narita, I. Shimizu, Y. Shimizu, J. Shirai, F. Suekane, A. SuzukiH. Takahashi, N. Takahashi, Y. Takemoto, K. Tamae, H. Watanabe, B. D. Xu, H. Yabumoto, H. Yoshida, S. Yoshida, S. Enomoto, A. Kozlov, H. Murayama, C. Grant, G. Keefer, 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, D. A. Dwyer, R. D. McKeown, C. Zhang, B. E. Berger, C. E. Lane, J. Maricic, T. Miletic, M. Batygov, J. G. Learned, S. Matsuno, M. Sakai, G. A. Horton-Smith, K. E. Downum, G. Gratta, Y. Efremenko, Y. Kamyshkov, O. Perevozchikov, H. J. Karwowski, D. M. Markoff, W. Tornow, K. M. Heeger, M. P. Decowski

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We present the results of a search for extraterrestrial electron antineutrinos (?e's) in the energy range 8.3MeV < E?e < 31.8MeV using the KamLAND detector. In an exposure of 4.53 kton-year, we identify 25 candidate events. All of the candidate events can be attributed to background, most importantly neutral current atmospheric neutrino interactions, setting an upper limit on the probability of 8B solar ?es converting into ?es at 5.3×10?5 (90% CL), if we assume an undistorted ?e shape. This limit corresponds to a solar ?e flux of 93 cm?2 s?1 or an event rate of 1.6 events (kton-year)?1 above the energy threshold (E? ≥ 8.3MeV). The present data also allows us to set more stringent limits on the diffuse supernova neutrino flux and on the annihilation rates for light dark matter particles.

Original languageEnglish (US)
Article number193
JournalAstrophysical Journal
Volume745
Issue number2
DOIs
StatePublished - Feb 1 2012
Externally publishedYes

Fingerprint

antineutrinos
detectors
energy
neutrinos
electron
neutral currents
supernovae
dark matter
thresholds
detector
rate
electrons
interactions
exposure
particle

Keywords

  • dark matter
  • ISM: supernova remnants
  • neutrinos
  • Sun: particle emission\

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Gando, A., Gando, Y., Ichimura, K., Ikeda, H., Inoue, K., Kibe, Y., ... Decowski, M. P. (2012). Search for extraterrestrial antineutrino sources with the KamLAND detector. Astrophysical Journal, 745(2), [193]. https://doi.org/10.1088/0004-637X/745/2/193

Search for extraterrestrial antineutrino sources with the KamLAND detector. / Gando, A.; Gando, Y.; Ichimura, K.; Ikeda, H.; Inoue, K.; Kibe, Y.; Kishimoto, Y.; Koga, M.; Minekawa, Y.; Mitsui, T.; Morikawa, T.; Nagai, N.; Nakajima, K.; Nakamura, K.; Narita, K.; Shimizu, I.; Shimizu, Y.; Shirai, J.; Suekane, F.; Suzuki, A.; Takahashi, H.; Takahashi, N.; Takemoto, Y.; Tamae, K.; Watanabe, H.; Xu, B. D.; Yabumoto, H.; Yoshida, H.; Yoshida, S.; Enomoto, S.; Kozlov, A.; Murayama, H.; Grant, C.; Keefer, G.; Piepke, A.; Banks, T. I.; Bloxham, T.; Detwiler, J. A.; Freedman, S. J.; Fujikawa, B. K.; Han, K.; Kadel, R.; O'Donnell, T.; Steiner, H. M.; Dwyer, D. A.; McKeown, R. D.; Zhang, C.; Berger, B. E.; Lane, C. E.; Maricic, J.; Miletic, T.; Batygov, M.; Learned, J. G.; Matsuno, S.; Sakai, M.; Horton-Smith, G. A.; Downum, K. E.; Gratta, G.; Efremenko, Y.; Kamyshkov, Y.; Perevozchikov, O.; Karwowski, H. J.; Markoff, D. M.; Tornow, W.; Heeger, K. M.; Decowski, M. P.

In: Astrophysical Journal, Vol. 745, No. 2, 193, 01.02.2012.

Research output: Contribution to journalArticle

Gando, A, Gando, Y, Ichimura, K, Ikeda, H, Inoue, K, Kibe, Y, Kishimoto, Y, Koga, M, Minekawa, Y, Mitsui, T, Morikawa, T, Nagai, N, Nakajima, K, Nakamura, K, 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, Yoshida, H, Yoshida, S, Enomoto, S, Kozlov, A, Murayama, H, Grant, C, Keefer, G, Piepke, A, Banks, TI, Bloxham, T, Detwiler, JA, Freedman, SJ, Fujikawa, BK, Han, K, Kadel, R, O'Donnell, T, Steiner, HM, Dwyer, DA, McKeown, RD, Zhang, C, Berger, BE, Lane, CE, Maricic, J, Miletic, T, Batygov, M, Learned, JG, Matsuno, S, Sakai, M, Horton-Smith, GA, Downum, KE, Gratta, G, Efremenko, Y, Kamyshkov, Y, Perevozchikov, O, Karwowski, HJ, Markoff, DM, Tornow, W, Heeger, KM & Decowski, MP 2012, 'Search for extraterrestrial antineutrino sources with the KamLAND detector', Astrophysical Journal, vol. 745, no. 2, 193. https://doi.org/10.1088/0004-637X/745/2/193
Gando, A. ; Gando, Y. ; Ichimura, K. ; Ikeda, H. ; Inoue, K. ; Kibe, Y. ; Kishimoto, Y. ; Koga, M. ; Minekawa, Y. ; Mitsui, T. ; Morikawa, T. ; Nagai, N. ; Nakajima, K. ; Nakamura, K. ; Narita, K. ; Shimizu, I. ; Shimizu, Y. ; Shirai, J. ; Suekane, F. ; Suzuki, A. ; Takahashi, H. ; Takahashi, N. ; Takemoto, Y. ; Tamae, K. ; Watanabe, H. ; Xu, B. D. ; Yabumoto, H. ; Yoshida, H. ; Yoshida, S. ; Enomoto, S. ; Kozlov, A. ; Murayama, H. ; Grant, C. ; Keefer, G. ; Piepke, A. ; Banks, T. I. ; Bloxham, T. ; Detwiler, J. A. ; Freedman, S. J. ; Fujikawa, B. K. ; Han, K. ; Kadel, R. ; O'Donnell, T. ; Steiner, H. M. ; Dwyer, D. A. ; McKeown, R. D. ; Zhang, C. ; Berger, B. E. ; Lane, C. E. ; Maricic, J. ; Miletic, T. ; Batygov, M. ; Learned, J. G. ; Matsuno, S. ; Sakai, M. ; Horton-Smith, G. A. ; Downum, K. E. ; Gratta, G. ; Efremenko, Y. ; Kamyshkov, Y. ; Perevozchikov, O. ; Karwowski, H. J. ; Markoff, D. M. ; Tornow, W. ; Heeger, K. M. ; Decowski, M. P. / Search for extraterrestrial antineutrino sources with the KamLAND detector. In: Astrophysical Journal. 2012 ; Vol. 745, No. 2.
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abstract = "We present the results of a search for extraterrestrial electron antineutrinos (?e's) in the energy range 8.3MeV < E?e < 31.8MeV using the KamLAND detector. In an exposure of 4.53 kton-year, we identify 25 candidate events. All of the candidate events can be attributed to background, most importantly neutral current atmospheric neutrino interactions, setting an upper limit on the probability of 8B solar ?es converting into ?es at 5.3×10?5 (90{\%} CL), if we assume an undistorted ?e shape. This limit corresponds to a solar ?e flux of 93 cm?2 s?1 or an event rate of 1.6 events (kton-year)?1 above the energy threshold (E? ≥ 8.3MeV). The present data also allows us to set more stringent limits on the diffuse supernova neutrino flux and on the annihilation rates for light dark matter particles.",
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AU - Gando, A.

AU - Gando, Y.

AU - Ichimura, K.

AU - Ikeda, H.

AU - Inoue, K.

AU - Kibe, Y.

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 - 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 - Yoshida, H.

AU - Yoshida, S.

AU - Enomoto, S.

AU - Kozlov, A.

AU - Murayama, H.

AU - Grant, C.

AU - Keefer, G.

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 - Dwyer, D. A.

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 - Sakai, M.

AU - Horton-Smith, G. A.

AU - Downum, K. E.

AU - Gratta, G.

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 - Decowski, M. P.

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N2 - We present the results of a search for extraterrestrial electron antineutrinos (?e's) in the energy range 8.3MeV < E?e < 31.8MeV using the KamLAND detector. In an exposure of 4.53 kton-year, we identify 25 candidate events. All of the candidate events can be attributed to background, most importantly neutral current atmospheric neutrino interactions, setting an upper limit on the probability of 8B solar ?es converting into ?es at 5.3×10?5 (90% CL), if we assume an undistorted ?e shape. This limit corresponds to a solar ?e flux of 93 cm?2 s?1 or an event rate of 1.6 events (kton-year)?1 above the energy threshold (E? ≥ 8.3MeV). The present data also allows us to set more stringent limits on the diffuse supernova neutrino flux and on the annihilation rates for light dark matter particles.

AB - We present the results of a search for extraterrestrial electron antineutrinos (?e's) in the energy range 8.3MeV < E?e < 31.8MeV using the KamLAND detector. In an exposure of 4.53 kton-year, we identify 25 candidate events. All of the candidate events can be attributed to background, most importantly neutral current atmospheric neutrino interactions, setting an upper limit on the probability of 8B solar ?es converting into ?es at 5.3×10?5 (90% CL), if we assume an undistorted ?e shape. This limit corresponds to a solar ?e flux of 93 cm?2 s?1 or an event rate of 1.6 events (kton-year)?1 above the energy threshold (E? ≥ 8.3MeV). The present data also allows us to set more stringent limits on the diffuse supernova neutrino flux and on the annihilation rates for light dark matter particles.

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KW - ISM: supernova remnants

KW - neutrinos

KW - Sun: particle emission\

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