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Physical Review Letters 101 (2008) 171101
Muon Production in Extended Air Shower Simulations
T. Pierog, Klaus Werner1

Whereas air shower simulations are very valuable tools for interpreting cosmic ray data, there is a long standing problem: is seems to be impossible to accommodate at the same time the longitudinal development of air showers and the number of muons measured at ground. Using a new hadronic interaction model (EPOS) in air shower simulations produces considerably more muons, in agreement with results from the HiRes-MIA experiment. We find that this is mainly due to a better description of baryon-antibaryon production in hadronic interactions. This is a new aspect of air shower physics which has never been considered so far.
1 :  SUBATECH - Laboratoire SUBATECH Nantes
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Physique/Physique des Hautes Energies - Phénoménologie

Physique/Physique Nucléaire Expérimentale

Physique/Physique Nucléaire Théorique

Planète et Univers/Astrophysique
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