https://doi.org/10.1051/epjconf/20159003002
p – air production cross-section and uncorrelated mini-jets processes in pp-scattering
1 Instituto de Física Teórica, UNESP, Rua Dr. Bento T. Ferraz, 271, Bloco II, 01140-070, São Paulo - SP, Brazil
2 Departamento de Física Teórica y del Cosmos, Universidad de Granada, 18071 Granada, Spain
3 INFN Frascati National Laboratories, Via E. Fermi 40, Frascati I00044, Italy
4 Physics Department, University of Perugia, Perugia, Italy
5 Kharkov Institute of Physics and Technology 61108, Akademicheskaya,1, Kharkov, Ukraine Institute of Nuclear Physics PAN ul. Radzikowskiego 152 31-342 Krakow, Poland
a e-mail: dfagundes@ift.unesp.br
b e-mail: igrau@ugr.es
c e-mail: giulia.pancheri@lnf.infn.it
d e-mail: yogendra.srivastava@gmail.com
e e-mail: olga.shekhovtsova@ifj.edu.pl
Published online: 24 March 2015
For the p – air production cross-section, we use a Glauber formalism which inputs the pp inelastic cross-section from a mini-jet model embedded in a single-channel eikonal expression, that provides the needed contribution of uncorrelated processes. It is then shown that current LO parton density functions for the pp mini-jet cross-sections, with a rise tempered by acollinearity induced by soft gluon re-summation, are well suited to reproduce recent cosmic ray results. By comparing results for GRV, MRST72 and MSTW parametrizations, we estimate the uncertainty related to the low-x behavior of these densities.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
