p-air production cross-section and uncorrelated mini-jets processes in pp-scattering
High Energy Physics - Phenomenology
2015-06-22 v2
Abstract
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, which 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 collinearity 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.
Keywords
Cite
@article{arxiv.1408.2921,
title = {p-air production cross-section and uncorrelated mini-jets processes in pp-scattering},
author = {D. A. Fagundes and A. Grau and G. Pancheri and Y. N. Srivastava and O. Shekhovtsova},
journal= {arXiv preprint arXiv:1408.2921},
year = {2015}
}
Comments
7 pages, 5 figures, to appear in Proceedings of ISMD2014, 8-12 September 2014, Bologna, Italy