Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

4-2005

Journal or Book Title

Physical Review D

Volume

71

Issue

7

First Page

071102

DOI

10.1103/PhysRevD.71.071102

Abstract

A measurement of direct photons in p+p collisions at root s=200 GeV is presented. A photon excess above background from pi(0)->gamma+gamma, eta ->gamma+gamma and other decays is observed in the transverse momentum range 5.5 < p(T)< 7 GeV/c. The result is compared to a next-to-leading-order perturbative QCD calculation. Within errors, good agreement is found between the QCD calculation and the measured result.

Comments

This article is published as Adler, Stephen Scott, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas et al. "Midrapidity direct-photon production in p+ p collisions at s= 200 GeV." Physical Review D 71, no. 7 (2005): 071102. DOI: 10.1103/PhysRevD.71.071102. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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