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

Loading...
Thumbnail Image
Date
2014
Journal Title
Journal ISSN
Volume Title
Publisher
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. The predictions are found to be consistent with the data over most of the examined kinematic region.

Description
Keywords
High Energy Physics - Experiment, Hadron-Hadron Scattering, QCD
Citation
Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Fabjan, C., Friedl, M., Frühwirth, R., Ghete, V. M., Hörmann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knünz, V., Krammer, M., … Swanson, J. (2014). Measurement of the triple-differential cross section for photon + jets production in proton-proton collisions at $\sqrt{s}$ = 7 TeV. In Journal of High Energy Physics (Vol. 2014, Issue 6). Springer Science and Business Media LLC. https://doi.org/10.1007/jhep06(2014)009