Eur. Phys. J. C (2014) 74: 2785
https://doi.org/10.1140/epjc/s10052-014-2785-7

Regular Article - Theoretical Physics

Tsallis statistics approach to the transverse momentum distributions in p–p collisions

Institute of Physics, Jan Kochanowski University, ul. Swietokrzyska 15, 25406 , Kielce, Poland

^* e-mail: Maciej.Rybczynski@ujk.edu.pl

Received: 23 January 2014
Accepted: 14 February 2014
Published online: 26 February 2014

Abstract

Transverse momentum distributions of negatively charged pions produced in p–p interactions at beam momenta 20, 31, 40, 80, and 158 GeV are studied using the Tsallis distribution as a parametrization. Results are compared with higher energy data and changes of parameters with energy are determined. Different Tsallis-like distributions are compared.