22-24 May 2013
Physics Department, University "La Sapienza", Roma, Italy
Europe/Rome timezone

Energy spectrum of Cosmic ray Protons and Helium nuclei measured by the ARGO-YBJ experiment

23 May 2013, 15:45
Aula Giorgio Careri (first floor) (Physics Department, University "La Sapienza", Roma, Italy)

Aula Giorgio Careri (first floor)

Physics Department, University "La Sapienza", Roma, Italy


Paolo Montini (INFN - Sezione di Roma TRE)


The ARGO-YBJ experiment is a full-coverage air shower detector operating at the Yangbajing International Cosmic Ray Observatory (Tibet, P.R China, 4300 m a.s.l.). The detector was in stable data taking in its full configuration from Nov. 2007 to Dec 2012. More than 10^11 events have been collected and reconstructed. Due to its characteristics (full-coverage, high segmentation,high altitude operation) the ARGO-YBJ experiment is able to investigate the cosmic ray energy spectrum in a wide energy range. In this work we present the measurement of the Proton and Helium spectra in the energy range 1-300 TeV by using a large data sample collected between Jan. 2008 and Dec. 2011.

Primary authors

Paolo Montini (INFN - Sezione di Roma TRE) Stefano Maria Mari (Dipartimento di Matematica e Fisica, Universita' degli Studi Roma TRE - INFN Sezione di Roma TRE)


ARGO-YBJ Collaboration (Yangbajing Cosmic Ray Laboratory)

Presentation Materials