Eur. Phys. J. C (2012) 72: 1961
https://doi.org/10.1140/epjc/s10052-012-1961-x

Letter

Anomalous behavior of pion production in high energy particle collisions

Institute for Theoretical and Experimental Physics, ITEP, Bolshaya Cheremushkinskaya 25, Moscow, Russia

^* e-mail: alexander.bylinkin@gmail.com

Received: 22 February 2012
Published online: 28 March 2012

Abstract

The shape of the invariant differential cross section for charged hadron production as a function of transverse momentum measured in various collider experiments is analyzed. Contrary to the behavior of produced charged kaons, protons, and antiprotons, the pion spectra require an anomalously high contribution of an exponential term to describe the shape.