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SUMMARY:Investigation of the Proton plus Helium cosmic ray spectrum in the
  10 TeV - 126 TeV energy region with HAWC
DTSTART;VALUE=DATE-TIME:20210511T151000Z
DTEND;VALUE=DATE-TIME:20210511T152700Z
DTSTAMP;VALUE=DATE-TIME:20260312T164744Z
UID:indico-contribution-33@cern.ch
DESCRIPTION:Speakers: Dr. ARTEAGA VELAZQUEZ\, Juan Carlos (Instituto de F
 ísica y Matemáticas\, Universidad Michoacana)\nThe knowledge of the spec
 trum and the composition of cosmic rays with energies from $10$ TeV to $1$
  PeV is very uncertain.  Detail measurements on these quantities are neede
 d if models on the origin\, acceleration mechanism and propagation of gala
 ctic cosmic rays are to be tested. In this contribution we present a detai
 l study on the most abundant component of cosmic rays around TeVs\, i.e.\,
  protons and helium nuclei\, using the High Altitude Water Cherenkov Obser
 vatory (HAWC). This experiment is an extensive air shower detector array c
 omposed of $300$ water Cherenkov detectors closely packed in an area of $2
 2 000 \\\, m^2$. It is located at $4100 \\\, m$ a.s.l. at the Sierra Negra
  Volcano in Puebla\, Mexico and it is dedicated to studying TeV astrophysi
 cal gamma rays. Yet\, given its large coverage\, its large surface and its
  location at high altitude\, HAWC can also detect cosmic rays in the TeV r
 egime. The analysis presented here is based on an unfolding technique appl
 ied to a subsample of measured data\, which is dominated by proton and hel
 ium induced EAS. The subsample was selected using a cut on the shower age 
 parameter and predictions of the QGSJET-II-04 hadronic interaction model f
 or different cosmic ray primaries. The data was taken during four years of
  observation in the period from June 2015 to June 2019.\n\nhttps://indico.
 nucleares.unam.mx/event/1715/session/22/contribution/33
LOCATION:
URL:https://indico.nucleares.unam.mx/event/1715/session/22/contribution/33
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