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

Abstract

A measurement of the triple-differential cross section, $$ {{{{{\mathrm{d}}^3}\sigma }} \left/ {{\left( {\mathrm{d}\mathrm{p}_T^{\gamma}\mathrm{d}{\eta^{\gamma }}\mathrm{d}{\eta^{\mathrm{jet}}}} \right)}} \right.} $$ , in photon + jets final states using a data sample from proton-proton collisions at $$ \sqrt{s} $$ = 7 TeV is presented. This sample corresponds to an integrated luminosity of 2.14 fb$$^{-1}$$ collected by the CMS detector at the LHC. Photons and jets are reconstructed within a pseudorapidity range of |η| < 2.5, and are required to have transverse momenta in the range 40 < $$ p_{\mathrm{T}}^{\mathrm{jet}} $$ < 300 GeV and $$ p_{\mathrm{T}}^{\mathrm{jet}} $$ > 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. Lastly, the predictions are found to be consistent with the data over most of the examined kinematic region.

Authors:

Chatrchyan, Serguei ^[1]

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+ Show Author Affiliations

1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.

Publication Date:

Mon Jun 03 00:00:00 EDT 2013

Research Org.:

Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Org.:

USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Org.:

The CMS Collaboration

OSTI Identifier:

1151695

Report Number(s):

FERMILAB-PUB-13-619-CMS
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1311.6141

Grant/Contract Number:  

AC02-07CH11359

Resource Type:

Accepted Manuscript

Journal Name:

Journal of High Energy Physics (Online)

Additional Journal Information:

Journal Name: Journal of High Energy Physics (Online); Journal ID: ISSN 1029-8479

Publisher:

Springer Berlin

Country of Publication:

United States

Language:

English

Subject:

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Hadron-Hadron Scattering; QCD