Production of pizero and eta mesons at large transverse momenta in pi-p and pi-Be interactions at 515 GeV/c

TL;DR

This paper reports measurements of high transverse momentum pi-zero and eta meson production in pi-p and pi-Be collisions at 515 GeV/c, comparing results with QCD predictions and phenomenological models.

Contribution

It provides new experimental data on meson production at high transverse momentum in pion-induced interactions at 515 GeV/c.

Findings

Inclusive pi-zero cross sections agree with NLO QCD calculations

Data supports the validity of the parton-k_T model at high p_T

Results extend the kinematic range of meson production measurements

Abstract

We present results on the production of high transverse momentum pizero and eta mesons in pi-p and pi-Be interactions at 515 GeV/c. The data span the kinematic ranges 1 < p_T < 11 GeV/c in transverse momentum and -0.75 < y < 0.75 in rapidity. The inclusive pizero cross sections are compared with next-to-leading order QCD calculations and to expectations based on a phenomenological parton-k_T model.