Measurement of γ + b + X and γ + c +X Production Cross Sections in pp Collisions at √s = 1.96TeV

Authors

V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Gregory Snow, University of Nebraska-LincolnFollow
D0 Collaboration

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 p_T^γ dy^γ dy^jet) for the inclusive production of a photon in association with a heavy quark (b, c) jet are presented, covering photon transverse momenta 30 < p_T^γ < 150 GeV, photon rapidities |y^γ| < 1.0, jet rapidities |y^jet| < 0.8, and jet transverse momenta p_T^jet > 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.