Towards Baikal-Top: Feasibility study of an onshore detector system for the joint registration of EAS with Baikal-GVD
Budker Institute of Nuclear Physics SB RAS（布杰尔核物理研究所）；Novosibirsk State University（新西伯利亚国立大学）；Institute for Nuclear Research of the Russian Academy of Sciences（俄罗斯科学院核物理研究所）
We study the possibility of registering high-energy extensive air showers (EAS) by the onshore detector facility simultaneously with the trigger of the Baikal-GVD neutrino telescope. The location of the surface detector array on the shore of Lake Baikal is motivated by the fact that permanent placement of detectors on the surface of the lake is challenging. Within the given geometry, simultaneous registration is possible for EAS with a zenith angle of about 76 degrees within the limited solid angle. The corresponding inclined EAS are dominated by muons and significantly attenuated. The installation will make it possible to obtain an estimate of the number of high-energy muons in EAS. This, subsequently, would make it possible to verify EAS modeling and calculations of the atmospheric neutrino flux. The detector may also be used for cross-calibration of energy and direction measurements by the neutrino telescope. We use the CORSIKA program to simulate the registration of EAS on the shore close to the Baikal-GVD. The propagation of ultra-high energy muons produced by EAS through 3.5 km of water and their registration by Baikal-GVD is simulated using the PROPOSAL package. We calculate the minimal total area of the onshore detectors suitable for several cosmic ray energy thresholds, starting from 1 PeV. The report presents estimates of the number of events jointly registered by the onshore installation and the Baikal-GVD the EAS registration detector systems with different areas.
Rejecting noise in Baikal-GVD data with neural networks
Institute for Nuclear Research of the Russian Academy of Sciences（俄罗斯科学院核研究所）；Moscow Institute of Physics and Technology（莫斯科物理技术学院）；Novosibirsk State University（新西伯利亚国立大学）；Joint Institute for Nuclear Research（联合核研究所）
Muon Track Reconstruction Procedures at the Baikal-GVD Neutrino Telescope
Joint Institute for Nuclear Research（苏联联合核研究所）；Institute for Nuclear Research of the Russian Academy of Sciences（俄罗斯科学院核物理研究所）；Comenius University（布拉迪斯拉发康斯坦丁神父大学）；Czech Technical University, Institute of Experimental and Applied Physics（捷克理工大学实验与应用物理研究所）；Irkutsk State University（伊尔库茨克国立大学）；Skobeltsyn Research Institute of Nuclear Physics, Moscow State University（莫斯科国立大学斯科别尔钦核物理研究所）；Institute of Nuclear Physics ME RK（哈萨克斯坦共和国教育部核物理研究所）
Joint Institute for Nuclear Research（联合核研究所）；Institute for Nuclear Research, Russian Academy of Sciences（俄罗斯科学院核物理研究所）；Comenius University（布拉迪斯拉发康斯坦丁神甫大学）；Czech Technical University in Prague（捷克理工大学）；Irkutsk State University（伊尔库茨克国立大学）；Skobeltsyn Institute of Nuclear Physics MSU（莫斯科国立大学斯科别尔钦核物理研究所）；Institute of Nuclear Physics of the Ministry of Energy of the Republic of Kazakhstan（哈萨克斯坦共和国能源部核物理研究所）
