Measurement of the triple-differential cross section for photon + jets production in proton-proton collisions at √s = 7 TeV

Authors

S. Chatrchyan, Yerevan Physics Institute
Ekaterina Avdeeva, University of Nebraska-LincolnFollow
Kenneth A. Bloom, University of Nebraska - LincolnFollow
S. Bose, University of Nebraska - LincolnFollow
Daniel R. Claes, University of Nebraska-LincolnFollow
Aaron Dominguez, University of Nebraska-LincolnFollow
M. Eads, University of Nebraska-LincolnFollow
Rebeca Gonzalez Suarez, University of Nebraska-LincolnFollow
J. Keller, University of Nebraska-LincolnFollow
Ilya Kravchenko, University of Nebraska-LincolnFollow
J. Lazo-Flores, University of Nebraska-LincolnFollow
S. Malik, University of Nebraska-LincolnFollow
F. Meier, University of Nebraska-LincolnFollow
Gregory R. Snow, University of Nebraska-LincolnFollow
CMS collaboration, CMS collaboration

Date of this Version

6-3-2014

Citation

JHEP06(2014)009; doi:10.1007/JHEP06(2014)009

Comments

Copyright © 2014 CERN, issued under CC license; published by Springer.

Abstract

A measurement of the triple-differential cross section, d³σ/(dp_T^ϒ dɳ^ϒ dɳ^jet), in photon+jets final states using a data sample from proton-proton collisions at√s = 7TeV is presented. This sample corresponds to an integrated luminosity of 2.14 fb⁻¹ collected bythe CMS detector at the LHC. Photons and jets are reconstructed within a pseudorapidity range of |ɳ| < 2.5, and are required to have transverse momenta in the range 40 < p^jet_T < 300 GeV and p^jet_T > 30 GeV, respectively. The measurements are compared to theoretical predictions from the sherpa leading-order QCD Monte Carlo event generator and the next-to-leading-order perturbative QCD calculation from jetphox. The predictions are found to be consistent with the data over most of the examined kinematic region.