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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2595
DTSTART:20120223T220000Z
DURATION:PT1H0M0S
DTSTAMP:20260415T193920Z
LAST-MODIFIED:20120216T145950Z
LOCATION:4274 Chamberlin Hall
SUMMARY:The Pierre Auger Observatory: the highest energy frontier\, NP
 AC (Nuclear/Particle/Astro/Cosmo) Forum\, Ines Valino Rielo\, Universi
 ty of Santiago de Compostela
DESCRIPTION:A century after the discovery of cosmic rays\, the nature 
 and origin of the highest energy particles in the Universe\, the Ultra
 -High Energy Cosmic Rays (UHECR)\, remain enigmatic. Thanks to experim
 ents dedicated to probing the extreme end of the energy spectrum\, exc
 iting progress is being made in solving these puzzles.The Pierre Auger
  Observatory is currently the World`s largest detector for UHECR.  The
  goal is to measure the cosmic ray energy spectrum\, arrival direction
 s\, and the properties of the extensive air showers induced by the UHE
 CRs in the atmosphere with the objective of unveiling cosmic ray eleme
 ntal composition\, origins and propagation effects.  The observatory h
 as now collected more data than all previous experiments combined\, an
 d employs multiple detection (hybrid) detection techniques allowing fo
 r a large exposure and excellent control of systematic uncertainties. 
  The original design\, optimized for the energy range from 1018 eV to 
 the end of the spectrum\, has recently been enhanced to cover energies
  down to almost 1017 eV\, allowing us to view additional interesting f
 eatures of the spectrum.  I will give an overview of the latest result
 s with a focus on the current status of the search for ultra-high ener
 gy neutrinos and photons and the promising prospect to use cosmic rays
  to study hadronic interactions at energies beyond the reach of the LH
 C.
URL:https://www.physics.wisc.edu/events/?id=2595
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