To understand the origin and nature of Ultra High Energy Cosmic Rays their mass composition must be known. The Pierre Auger Observatory is an instrument which provides valuable information for the determination of the primary mass. Different parameters that describe various characteristics of the shower development and at the same time are sensitive to the primary mass are discussed. Their energy dependence and a comparison with predictions from different models are also presented.
General information
Issue date:2015
Document language:English
Journal:Nuclear and Particle Physics Proceedings; vol. 267-269
Event:X Latin American Symposium of High Energy Physics (Colombia, 24 al 28 de noviembre de 2014)
Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)