@article{4fd13db51d4447dc89a00df8f2545311,
title = "KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS",
abstract = "In the late stages of nuclear burning for massive stars (M > 8 Mȯ), the production of neutrino-antineutrino pairs through various processes becomes the dominant stellar cooling mechanism. As the star evolves, the energy of these neutrinos increases and in the days preceding the supernova a significant fraction of emitted electron anti-neutrinos exceeds the energy threshold for inverse beta decay on free hydrogen. This is the golden channel for liquid scintillator detectors because the coincidence signature allows for significant reductions in background signals. We find that the kiloton-scale liquid scintillator detector KamLAND can detect these pre-supernova neutrinos from a star with a mass of 25 Mȯ at a distance less than 690 pc with 3σ significance before the supernova. This limit is dependent on the neutrino mass ordering and background levels. KamLAND takes data continuously and can provide a supernova alert to the community.",
keywords = "neutrinos, supernovae: general",
author = "{The KamLAND Collaboration} and K. Asakura and A. Gando and Y. Gando and T. Hachiya and S. Hayashida and H. Ikeda and K. Inoue and K. Ishidoshiro and T. Ishikawa and S. Ishio and M. Koga and S. Matsuda and T. Mitsui and D. Motoki and K. Nakamura and S. Obara and T. Oura and I. Shimizu and Y. Shirahata and J. Shirai and A. Suzuki and H. Tachibana and K. Tamae and K. Ueshima and H. Watanabe and Xu, {B. D.} and A. Kozlov and Y. Takemoto and S. Yoshida and K. Fushimi and A. Piepke and Banks, {T. I.} and Berger, {B. E.} and Fujikawa, {B. K.} and T. O'Donnell and Learned, {J. G.} and J. Maricic and S. Matsuno and M. Sakai and Winslow, {L. A.} and Y. Efremenko and Karwowski, {H. J.} and Markoff, {D. M.} and W. Tornow and Detwiler, {J. A.} and S. Enomoto and Decowski, {M. P.}",
note = "Funding Information: The authors thank A. Odrzywolek for providing his data. KamLAND is supported by MEXT KAKENHI grant numbers 26104002, 26104007; the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan; and under the U.S. Department of Energy (DOE) grant Nos. DE-FG03-00ER41138, DE-AC02-05CH11231, and DEFG02-01ER41166, as well as other DOE and NSF grants to individual institutions, and Stichting Fundamenteel Onderzoek der Materie (FOM) in the Netherlands. The Kamioka Mining and Smelting Company has provided service for activities in the mine. We thank the support of NII for SINET4.",
year = "2016",
month = feb,
day = "10",
doi = "10.3847/0004-637X/818/1/91",
language = "English (US)",
volume = "818",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",
}