Search for electron antineutrinos associated with gravitational wave events GW150914 and GW151226 using KamLAND

KamLAND Collaboration: A. Gando , Y. Gando , T. Hachiya , A. Hayashi , S. Hayashida , H. Ikeda , K. Inoue , K. Ishidoshiro

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Y. Karino M. Koga S. Matsuda T. Mitsui K. Nakamura S. Obara T. Oura H. Ozaki I. Shimizu Y. Shirahata J. Shirai A. Suzuki T. Takai K. Tamae Y. Teraoka K. Ueshima H. Watanabe A. Kozolov Y. Takemoto S. Yoshida K. Fushimi A. Piepke T. I. Banks B. E. Berger B. K. Fujikawa T. O'Donnell J. G. Learned J. Maricic M. Sakai L. A. Winslow E. Krupczak J. Ouellet Y. Efremenko H. J. Karwowski D. M. Markoff W. Tornow J. A. Detwiler S. Enomoto M. P. Decowski

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classification 🌌 astro-ph.HE hep-exnucl-ex

keywords eventsantineutrinogravitationalwaveelectrongw150914gw151226kamland

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We present a search for low energy antineutrino events coincident with the gravitational wave events GW150914 and GW151226, and the candidate event LVT151012 using KamLAND, a kiloton-scale antineutrino detector. We find no inverse beta-decay neutrino events within $\pm 500$ seconds of either gravitational wave signal. This non-detection is used to constrain the electron antineutrino fluence and the luminosity of the astrophysical sources.

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Search for electron antineutrinos associated with gravitational wave events GW150914 and GW151226 using KamLAND

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