超级神冈的超新星前预警系统
高能物理 - 实验
2022-08-25 v2 高能天体物理现象
仪器与探测器
摘要
2020 年，超级神冈(SK)实验进入新阶段(SK-Gd)，在探测器水中加入硫酸八水合钆(Gd)，提升了对热中子的探测效率，从而改善了对来自逆β衰变(IBD)相互作用的低能电子反中微子的灵敏度。SK-Gd 有潜力通过探测来自热过程和核过程的电子反中微子，对初发核心坍缩超新星提供早期预警，这些过程负责大质量恒星在核心引力坍缩前的冷却。在硅燃烧阶段发射的这些超新星前中微子可超过 IBD 反应的能力阈值。我们给出了 SK-Gd 对超新星前恒星的灵敏度，以及基于在 SK 中探测这些中微子开发超新星前警报的技术，并展望了未来具有更高 Gd 浓度的 SK-Gd 阶段。对于当前 SK-Gd 阶段，可在核心坍缩前长达九小时发出针对参宿四的高置信度警报。
引用
@article{arxiv.2205.09881,
title = {Pre-Supernova Alert System for Super-Kamiokande},
author = {Kamiokande Collaboration and L. N. Machado and K. Abe and Y. Hayato and K. Hiraide and K. Ieki and M. Ikeda and J. Kameda and Y. Kanemura and R. Kaneshima and Y. Kashiwagi and Y. Kataoka and S. Miki and S. Mine and M. Miura and S. Moriyama and Y. Nakano and M. Nakahata and S. Nakayama and Y. Noguchi and K. Okamoto and K. Sato and H. Sekiya and H. Shiba and K. Shimizu and M. Shiozawa and Y. Sonoda and Y. Suzuki and A. Takeda and Y. Takemoto and A. Takenaka and H. Tanaka and S. Watanabe and T. Yano and P. de Perio and K. Martens and M. R. Vagins and J. Bian and N. J. Griskevich and W. R. Kropp and S. Locke and M. B. Smy and H. W. Sobel and V. Takhistov and A. Yankelevich and S. Han and T. Kajita and K. Okumura and T. Tashiro and T. Tomiya and X. Wang and J. Xia and S. Yoshida and G. D. Megias and P. Fernandez and L. Labarga and N. Ospina and B. Zaldivar and B. W. Pointon and R. Akutsu and V. Gousy-Leblanc and M. Hartz and A. Konaka and N. W. Prouse and E. Kearns and J. L. Raaf and L. Wan and T. Wester and J. Hill and J. Y. Kim and I. T. Lim and R. G. Park and B. Bodur and K. Scholberg and C. W. Walter and L. Bernard and A. Coffani and O. Drapier and S. El Hedri and A. Giampaolo and Th. A. Mueller and A. D. Santos and P. Paganini and B. Quilain and T. Ishizuka and T. Nakamura and J. S. Jang and J. G. Learned and S. Cao and K. Choi and L. H. V. Anthony and D. Martin and M. Scott and A. A. Sztuc and Y. Uchida and V. Berardi and M. G. Catanesi and E. Radicioni and N. F. Calabria and G. De Rosa and G. Collazuol and F. Iacob and M. Lamoureux and M. Mattiazzi and L. Ludovici and M. Gonin and G. Pronost and C. Fujisawa and Y. Maekawa and Y. Nishimura and R. Sasaki and M. Friend and T. Hasegawa and T. Ishida and M. Jakkapu and T. Kobayashi and T. Matsubara and T. Nakadaira and K. Nakamura and Y. Oyama and K. Sakashita and T. Sekiguchi and T. Tsukamoto and T. Boschi and F. Di Lodovico and J. Gao and A. Goldsack and T. Katori and J. Migenda and M. Taani and S. Zsoldos and Y. Kotsar and H. Ozaki and A. T. Suzuki and Y. Takeuchi and S. Yaamoto and C. Bronner and J. Feng and T. Kikawa and M. Mori and T. Nakaya and R. A. Wendell and K. Yasutome and S. J. Jenkins and N. McCauley and P. Mehta and K. M. Tsui and Y. Fukuda and Y. Itow and H. Menjo and K. Ninomiya and J. Lagoda and S. M. Lakshmi and M. Mandal and P. Mijakowski and Y. S. Prabhu and J. Zalipska and M. Jia and J. Jiang and C. K. Jung and M. J. Wilking and C. Yanagisawa and M. Harada and H. Ishino and S. Ito and H. Kitagawa and Y. Koshio and W. Ma and F. Nakanishi and S. Sakai and G. Barr and D. Barrow and L. Cook and S. Samani and D. Wark and F. Nova and J. Y. Yang and M. Malek and J. M. McElwee and O. Stone and M. D. Thiesse and L. F. Thompson and H. Okazawa and S. B. Kim and J. W. Seo and I. Yu and A. K. Ichikawa and K. D. Nakamura and S. Tairafune and K. Nishijima and K. Iwamoto and K. Nakagiri and Y. Nakajima and N. Taniuchi and M. Yokoyama and S. Izumiyama and M. Kuze and M. Inomoto and M. Ishitsuka and H. Ito and T. Kinoshita and R. Matsumoto and Y. Ommura and N. Shigeta and M. Shinoki and T. Suganuma and M. Yonenaga and J. F. Martin and H. A. Tanaka and T. Towstego and S. Chen and B. D. Xu and B. Zhang and M. Posiadala-Zezula and D. Hadley and M. Nicholson and M. O'Flaherty and B. Richards and A. Ali and B. Jamieson and Ll. Marti and A. Minamino and G. Pintaudi and S. Sano and S. Suzuki and K. Wada},
journal= {arXiv preprint arXiv:2205.09881},
year = {2022}
}
备注
20 pages