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arXiv 2202.07345astro-ph.HE
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KamLAND从IceCube寻找与天体物理中微子相关的低能电子反中微子

KamLAND's search for correlated low-energy electron antineutrinos with astrophysical neutrinos from IceCube

S. Abe, S. Asami, M. Eizuka, S. Futagi, A. Gando, Y. Gando, T. Gima, A. Goto, T. Hachiya, K. Hata, K. Hosokawa, K. Ichimura, S. Ieki, H. Ikeda, K. Inoue, K. Ish… 展开作者

S. Abe, S. Asami, M. Eizuka, S. Futagi, A. Gando, Y. Gando, T. Gima, A. Goto, T. Hachiya, K. Hata, K. Hosokawa, K. Ichimura, S. Ieki, H. Ikeda, K. Inoue, K. Ishidoshiro, Y. Kamei, N. Kawada, Y. Kishimoto, T. Kinoshita, M. Koga, M. Kurasawa, N. Maemura, T. Mitsui, H. Miyake, T. Nakahata, K. Nakamura, K. Nakamura, R. Nakamura, H. Ozaki, T. Sakai, H. Sambonsugi, I. Shimizu, J. Shirai, K. Shiraishi, A. Suzuki, Y. Suzuki, A. Takeuchi, K. Tamae, H. Watanabe, Y. Yoshida, S. Obara, A. K. Ichikawa, S. Yoshida, S. Umehara, K. Fushimi, K. Kotera, Y. Urano, B. E. Berger, B. K. Fujikawa, J. G. Learned, J. Maricic, S. N. Axani, J. Smolsky, J. Lertprasertpong, 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, H. Song, T. O'Donnell, S. Dell'Oro

摘要:

我们报告的结果,寻找MeV级天体物理中微子在KamLAND呈现为一个多余的重合中微子相互作用的数量与公开可用的高能中微子数据集从冰立方中微子天文台。我们发现,在卡姆兰德观测到的低能电子反中微子数量在统计学上没有显著的过剩,在每个冰立方中微子周围的符合时间窗口分别为$\pm$ 500 s、$\pm$ 1,000 s、$\pm$ 3,600 s和$\pm$ 10,000 s。假设单能通量,我们利用这一观察结果给出了电子反中微子注量的1.8 MeV至100 MeV范围内的限制。然后,我们比较的结果进行的几个天体物理测量冰立方和放置在90%的置信水平上的电子反中微子各向同性的热光度从TXS 0506+056耀变体的限制。

英文摘要:

We report the results of a search for MeV-scale astrophysical neutrinos in KamLAND presented as an excess in the number of coincident neutrino interactions associated with the publicly available high-energy neutrino datasets from the IceCube Neutrino Observatory. We find no statistically significant excess in the number of observed low-energy electron antineutrinos in KamLAND, given a coincidence time window of $\pm$500s, $\pm$1,000s, $\pm$3,600s, and $\pm$10,000s around each of the IceCube neutrinos. We use this observation to present limits from 1.8 MeV to 100 MeV on the electron antineutrino fluence, assuming a mono-energetic flux. We then compare the results to several astrophysical measurements performed by IceCube and place a limit at the 90% confidence level on the electron antineutrino isotropic thermal luminosity from the TXS 0506+056 blazar.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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