Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/85332
Type: Artigo
Title: Heavy quark production in ultra high energy cosmic ray interactions
Author: Gonçalves, V. P.
Gratieri, D. R.
Abstract: In this paper we present a comprehensive study of the heavy quark production in ultra high energy cosmic ray interactions in the atmosphere considering that the primary cosmic ray can be either a photon, neutrino or a proton. The analysis is performed using a unified framework - the dipole formalism - and the saturation effects, associated to the physical process of parton recombination, are taken into account. We demonstrate that the contribution of heavy quarks for cosmic ray interactions is in general non-negligible and can be dominant depending of the process considered. Moreover, our results indicate that new dynamical mechanisms should be included in order to obtain reliable predictions for the heavy quark production in pp collisions at ultra high cosmic ray energies. © 2014 Elsevier B.V. All rights reserved.
In this paper we present a comprehensive study of the heavy quark production in ultra high energy cosmic ray interactions in the atmosphere considering that the primary cosmic ray can be either a photon, neutrino or a proton. The analysis is performed using a unified framework - the dipole formalism - and the saturation effects, associated to the physical process of parton recombination, are taken into account. We demonstrate that the contribution of heavy quarks for cosmic ray interactions is in general non-negligible and can be dominant depending of the process considered. Moreover, our results indicate that new dynamical mechanisms should be included in order to obtain reliable predictions for the heavy quark production in pp collisions at ultra high cosmic ray energies.
Subject: Quarks
Raios cósmicos
Cromodinâmica quântica
Country: Holanda
Editor: Elsevier
Citation: Astroparticle Physics. Elsevier, v. 61, n. , p. 41 - 46, 2015.
Rights: fechado
Identifier DOI: 10.1016/j.astropartphys.2014.06.009
Address: https://www.sciencedirect.com/science/article/pii/S0927650514000930
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
000343391200006.pdf563.92 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.