Search for Solar Flare Neutrinos with the KamLAND Detector

Kamland Collaboration, S. Abe, S. Asami, A. Gando, Y. Gando, T. Gima, A. Goto, T. Hachiya, K. Hata, S. Hayashida, K. Hosokawa, K. Ichimura, S. Ieki, H. Ikeda, K. Inoue, K. Ishidoshiro, Y. Kamei, N. Kawada, Y. Kishimoto, T. KinoshitaM. Koga, N. Maemura, T. Mitsui, H. Miyake, K. Nakamura, Kengo Nakamura, R. Nakamura, H. Ozaki, T. Sakai, H. Sambonsugi, I. Shimizu, J. Shirai, K. Shiraishi, A. Suzuki, Y. Suzuki, A. Takeuchi, K. Tamae, K. Ueshima, Y. Wada, H. Watanabe, Y. Yoshida, S. Obara, A. K. Ichikawa, A. Kozlov, D. Chernyak, Y. Takemoto, S. Yoshida, S. Umehara, K. Fushimi, K. Z. Nakamura, M. Yoshida, B. E. Berger, B. K. Fujikawa, J. G. Learned, J. Maricic, S. N. Axani, L. A. Winslow, Z. Fu, J. Ouellet, Y. Efremenko, H. J. Karwowski, D. M. Markoff, W. Tornow, A. Li, J. A. Detwiler, S. Enomoto, M. P. Decowski, C. Grant, T. O'Donnell, S. Dell'Oro

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We report the result of a search for neutrinos in coincidence with solar flares from the GOES flare database. The search was performed on a 10.8 kton-year exposure of KamLAND collected from 2002 to 2019. This large exposure allows us to explore previously unconstrained parameter space for solar flare neutrinos. We found no statistical excess of neutrinos and established 90% confidence level upper limits of 8.4 × 107 cm-2 (3.0 × 109 cm-2) on the electron antineutrino (electron neutrino) fluence at 20 MeV normalized to the X12 flare, assuming that the neutrino fluence is proportional to the X-ray intensity.

Original languageEnglish
Article number103
JournalAstrophysical Journal
Volume924
Issue number2
DOIs
Publication statusPublished - 2022 Jan 10

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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