Abstract

The Baikal-GVD deep underwater neutrino experiment participates in the international multi-messenger program to detect the astrophysical sources of high- and ultrahigh-energy cosmic-ray particles, being at the stage of array deployment and a step-by-step increase of the telescope’s effective volume to the scale of a cubic kilometer. At present, the telescope consists of seven clusters containing 2016 photodetectors. The effective volume of the detector has reached 0.35 km\({}^{3}\) for the selection of shower events from neutrino interactions in Baikal water. The experimental data have been accumulated in a continuous exposure mode since 2015, allowing a prompt data analysis and a celestial-sphere monitoring program to be implemented in real time. We discuss the structure of the data acquisition system, describe the physical event reconstruction procedure in the mode of fast response to alerts, and present the results of our analysis of nine alerts from the polar IceCube telescope from early September to late October 2020.

中文翻译：

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贝加尔湖-GVD中微子望远镜的高能中微子跟踪

摘要

贝加尔湖-GVD深水中微子实验参加了国际多信使计划，以探测高能和超高能宇宙射线粒子的天体来源，它们处于阵列部署阶段，并逐步增加了望远镜的有效容积达到一立方公里的规模。目前，望远镜由七个包含2016个光电探测器的星团组成。探测器的有效体积已达到0.35 km \（{} ^ {3} \）从贝加尔湖水中的中微子相互作用中选择淋浴事件。自2015年以来，实验数据已经以连续曝光的方式进行了积累，从而可以进行实时数据分析和天球监测程序。我们讨论了数据采集系统的结构，以对警报的快速响应方式描述了物理事件重建程序，并展示了我们对极地IceCube望远镜从2020年9月初至2020年10月下旬对九次警报进行分析的结果。