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Examination of direct-photon and pion production in proton-nucleon collisions

L. Apanasevich·M. Begel·C. Bromberg·T. Ferbel·G. Ginther·J. Huston·S. E. Kuhlmann·P. Slattery·M. Zielinski·V. Zutshi
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Abstract

We present a study of inclusive direct-photon and pion production in hadronic interactions, focusing on a comparison of the ratio of gamma/pi0 yields with expectations from next-to-leading order perturbative QCD (NLO pQCD). We also examine the impact of a phenomenological model involving k_T smearing (which approximates effects of additional soft-gluon emission) on absolute predictions for photon and pion production and their ratio.

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L. Apanasevich, M. Begel, C. Bromberg, T. Ferbel, G. Ginther, J. Huston, S. E. Kuhlmann, P. Slattery, M. Zielinski, V. Zutshi. 2000-09-13. Examination of direct-photon and pion production in proton-nucleon collisions. https://doi.org/10.1103/physrevd.63.014009

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