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SUMMARY:Status of the scintillation experiment of the TAIGA astrophysical 
 complex
DTSTART;VALUE=DATE-TIME:20241022T140500Z
DTEND;VALUE=DATE-TIME:20241022T160000Z
DTSTAMP;VALUE=DATE-TIME:20260314T055708Z
UID:indico-contribution-4094@cern.ch
DESCRIPTION:Speakers: Evgeniy Kravchenko (Novosibirsk State University/Bud
 ker Institute of Nuclear Physics)\nIn 2019\, as part of the development of
  the TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma Astronomy)
  astrophysical complex\, construction of the TAIGA-Muon scintillation faci
 lity began in addition to the existing Tunka-Grande system. The main objec
 tive of these systems is to study the energy spectrum and mass composition
  of cosmic rays in the energy range of $10^{15}–10^{18}$ eV\, as well as
  to search for gamma radiation in the same energy range. Original detector
 s have been developed for the TAIGA-Muon facility that use light guides wi
 th spectrum re-emitters to collect light on the PMT. Currently\, 5 out of 
 10 planned stations (clusters) have been deployed. Each station contains a
  ground part for detection of the charged component of the EAS and an unde
 rground part for the muon component registration.\nThe report\, firstly\, 
 presents the objectives and status of the facility\, a description of the 
 design of scintillation counters and clusters\, as well as the structure o
 f data collection\, time synchronization\, control and monitoring systems.
  The results of the study of EAS with an unusual spatiotemporal structure 
 are presented. It is assumed that the nature of the pulses with a multipea
 k structure and multipulse signals observed in the Tunka-Grande detectors 
 is associated with random coincidences from single atmospheric muons\, PMT
  afterpulses\, and features of the spatiotemporal structure of the EAS. Th
 e report also presents the results of a study of the joint operation of th
 e Tunka-Grande and TAIGA-HiSCORE setups in order to search for sub-PeV gam
 ma quanta. Estimates are made of the expected number of registered gamma q
 uanta from the Crab Nebula. The work was supported by the Russian Science 
 Foundation\, project 23-72-00054.\n\nhttps://indico.particle.mephi.ru/even
 t/436/contributions/4094/
LOCATION: Alexeevskiy hall
URL:https://indico.particle.mephi.ru/event/436/contributions/4094/
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