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SUMMARY:Prospects of “muon puzzle” solution with the NEVOD-DECOR-TREK 
 complex
DTSTART;VALUE=DATE-TIME:20210608T080500Z
DTEND;VALUE=DATE-TIME:20210608T083000Z
DTSTAMP;VALUE=DATE-TIME:20260314T014455Z
UID:indico-contribution-159@indico.nevod.mephi.ru
DESCRIPTION:Speakers: Egor Zadeba (National Research Nuclear University ME
 PhI (Moscow Engineering Physics Institute))\nMuon puzzle is a growing with
  cosmic ray energy excess of muons in EAS in comparison with simulations p
 erformed using various models of hadron interactions and even assuming a h
 eavy composition of cosmic rays. The main contribution to investigation of
  the energy dependence of the muon excess was done by NEVOD-DECOR experime
 nt. To separate two possible reasons of muon excess appearance (cosmophysi
 cal or nuclear-physical ones)\, measurements of the energy deposit of muon
  bundles are required. Such experiment is conducted at the NEVOD-DECOR com
 plex\, and the first results evident in favor of the nuclear-physical reas
 on. But both detectors NEVOD and DECOR have some drawbacks: non-symmetric 
 arrangement of modules of PMTs in Cherenkov water detector NEVOD and small
  area (about 70 sq. m) and insufficient spatial accuracy of muon track mea
 surements (~ 1 cm) in coordinate-tracking detection DECOR. Nowadays\, the 
 complex is being complemented with a new coordinate detector TREK with are
 a 250 sq.m based on multiwire drift chambers that will have spatial accura
 cy of 1 mm. In parallel\, modernization of the Cherenkov water detector NE
 VOD will be fulfilled. NEVOD-DECOR-TREK complex will allow us investigate 
 the muon component of inclined extensive air showers in a very wide energy
  region from 10^14 to 10^19 eV and to solve the muon puzzle by means of si
 multaneous measurements of the number of muons in DECOR-TREK system and th
 eir energy deposit in Cherenkov water calorimeter NEVOD.\n\nhttps://indico
 .nevod.mephi.ru/event/6/contributions/159/
LOCATION:Online Zoom
URL:https://indico.nevod.mephi.ru/event/6/contributions/159/
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