20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Mass composition of Ultra High Energy Cosmic Rays at the Pierre Auger Observatory

21 Jul 2011, 12:00
15m
Berlioz (Alpes Congrès - Alpexpo)

Berlioz

Alpes Congrès - Alpexpo

Parallel session talk Astroparticle Physics Astroparticle Physics

Speaker

Dr Hernan Wahlberg (IFLP - Universidad Nacional de La Plata)

Description

Authorship: The Pierre Auger Collaboration The mass composition of ultra-high energy cosmic rays is a critical issue to understand their origin and nature. The Pierre Auger Observatory is a hybrid instrument which provides a powerful environment for the determination of the primary mass, being able to discriminate between photons, neutrinos and hadrons. Results on limits of photon and neutrino fluxes together with hadronic identification are presented. The dependence of average primary mass with energy by comparison with current predictions from models is finally discussed.

Primary author

Dr Hernan Wahlberg (IFLP - Universidad Nacional de La Plata)

Co-author

Full author list: http://www.auger.org/archive/authors [www.auger.org] 2011 05.html For the Pierre Auger Collaboration (Observatorio Pierre Auger, Av. San Martin Norte 304, 5613 Malargue, Argentina)

Presentation Materials