Description: Ultra High Energy Cosmic Rays (UHECR) are the most energetic particles known in nature, with observed energies larger than 1018 eV. The Pierre Auger Observatory has been designed to measure these particles with unprecedent statistics and precision, obtaining crucial results on the measurement of the main cosmic ray characteristics as the energy spectrum and the mass composition. The study of the extragalactic propagation of UHECR has an important role on the investigation of the UHECR origin. I will discuss extragalactic nuclei propagation and I will present the MC propagation code SimProp. It constitutes a fundamental tool for the comparisons of Auger results with astrophysical scenarios of UHECR sources, that will be here discussed. The study of propagation is also discussed to point out the different roles of the mass composition results.
A starting point for a global view on UHECR results (spectrum and mass composition) will be also presented.


Denise Boncioli
Università di Tor Vergata
Roma

PLEASE NOTE THAT THIS SEMINAR WAS MOVED TO MAJORANA ROOM!

If available you can check seminar slides here on this INDICO event page. Complete LNGS seminar list (including slides) is also available at:
http://www.lngs.infn.it/lngs_infn/contents/lngs_en/research/experiments_scientific_info/conferences_seminars/seminars
URL: https://agenda.infn.it/conferenceDisplay.py?confId=5124