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SUMMARY:Telescope Array Experiment
DTSTART:20170509T222400Z
DTEND:20170509T224200Z
DTSTAMP:20260912T113700Z
UID:indico-contribution-5218@events.icecube.wisc.edu
DESCRIPTION:Speakers: Dmitri Ivanov (University of Utah)\n\nTelescope Arra
 y (TA) is the largest cosmic ray detector in the Norther hemisphere\, whic
 h measures primary particles in 4 PeV to 100 EeV range.   TA is a hybrid d
 etector. The main TA detector consists of 507 plastic scintillation counte
 rs on a 1.2km square grid\, overlooked by 3 fluorescence detector stations
 .  By May 2017\, TA will have collected 9 years of data above 1 EeV.  Resu
 lts of this contribution are based on the first 7 years of TA data. Recent
 ly built TA low energy extension detector\, which consists of an additiona
 l fluorescence detector and an infill array\, has now collected 2 years of
  data.  TALE broadens the energy range of TA to 4 PeV. \nThe following res
 ults of TA are presented: (1) Cosmic ray energy spectrum above 4 PeV\, whi
 ch extends over 4 orders of magnitude in energy and shows 4 features (2) M
 easurements of cosmic ray mass composition in 1 to 100 EeV range\, which i
 s found to be light\, most likely protonic (3) Search for gamma rays and n
 eutrinos above 1 EeV\, and (4) Cosmic ray anisotropy studies above 10 EeV.
   We have seen an evidence of a dependence of the flux on the arrival dire
 ction\, and a concentration of events above 57 EeV\, called the 'hotspot'\
 , centered in the Ursa Major.\n\nhttps://events.icecube.wisc.edu/event/82/
 contributions/5218/
LOCATION:Forum (Discovery Building)
RELATED-TO:indico-event-82@events.icecube.wisc.edu
URL:https://events.icecube.wisc.edu/event/82/contributions/5218/
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