Examination of direct-photon and pion production in proton-nucleon collisions - art. no. 014009

Authors
Apanasevich, L Begel, M Bromberg, C Ferbel, T Ginther, G Huston, J Kuhlmann, SE Slattery, P Zielinski, M Zutshi, V
Citation
L. Apanasevich et al., Examination of direct-photon and pion production in proton-nucleon collisions - art. no. 014009, PHYS REV D, 6301(1), 2001, pp. 4009
Citations number
68
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6301
Issue
1
Year of publication
2001
Database
ISI
SICI code
0556-2821(20010101)6301:1<4009:EODAPP>2.0.ZU;2-M
Abstract
We present a study of inclusive direct-photon and pion production in hadron ic interactions, focusing on a comparison of the ratio of gamma/pi (o) yiel ds with expectations from next-to-leading order perturbative QCD. We also e xamine the impact of a phenomenological model involving k(T) smearing (whic h approximates effects of additional soft-gluon emission) on absolute predi ctions for photon and pion production and their ratio.