Research Papers in Physics and Astronomy

 

Date of this Version

2009

Comments

Published in Physical Review Letters 102, 192002 (2009). Copyright © 2009 The American Physical Society. Used by permission.

Abstract

First measurements of the differential cross sections d3σ/(d pTγ dyγ dyjet) for the inclusive production of a photon in association with a heavy quark (b, c) jet are presented, covering photon transverse momenta 30 < pTγ < 150 GeV, photon rapidities |yγ| < 1.0, jet rapidities |yjet| < 0.8, and jet transverse momenta pTjet > 15 GeV. The results are based on an integrated luminosity of 1 fb-1 in pp collisions at √s = 1.96 TeV recorded with the D0 detector at the Fermilab Tevatron Collider. The results are compared with next-to-leading order perturbative QCD predictions.

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