Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

10-23-2012

Journal or Book Title

Physical Review D

Volume

86

Issue

7

First Page

072008

DOI

10.1103/PhysRevD.86.072008

Abstract

The differential cross section for the production of direct photons in p + p collisions at root s = 200 GeV at midrapidity was measured in the PHENIX detector at the Relativistic Heavy Ion Collider. Inclusive direct photons were measured in the transverse momentum range from 5: 5-25 GeV/c, extending the range beyond previous measurements. Event structure was studied with an isolation criterion. Next-to-leading-order perturbative-quantum-chromodynamics calculations give a good description of the spectrum. When the cross section is expressed versus x(T), the PHENIX data are seen to be in agreement with measurements from other experiments at different center-of-mass energies.

Comments

This is an article from Physical Review D 86 (2012): 072008-1, doi:10.1103/PhysRevD.86.072008. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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