Kamland从Icecube中搜索与天体中微子相关的低能电子抗神经药

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Kamland从Icecube中搜索与天体中微子相关的低能电子抗神经药

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

论文作者

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

论文摘要

我们报告了搜索Kamland中MEV规模的天体中微子的结果，这些中微子在与Icecube Neutminino天文台的公共可用高能中微子数据集相关的一致中微子相互作用的数量过多。我们发现，在巧合的时间窗口$ \ pm $ 500，$ \ pm $ 1,000s，$ \ pm $ 3,600s和$ \ $ \ $ \ $ \ $ \ $ \ $ \ $ \ $ \ $ \ $ \ $ 10,000 $ 10,000s的情况下，我们发现，凯姆兰观察到的低能电子抗内瑞氏菌的数量没有统计学上的显着过多。我们使用此观察结果将单个能量的通量从1.8 MeV到100 MeV的限制。然后，我们将结果与IceCube执行的几个天体物理测量值进行比较，并将限制在TXS 0506+056 Blazar的电子抗毒剂抗核心抗质子上的90％置信度上进行比较。

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.

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