Measurement of the Isolated Prompt Photons Production Cross Section in Pp Collisions at ?s=7tev
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Karapınar, Güler
Demir, Durmuş Ali
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Abstract
The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy ETγ in pp collisions at √s=7TeV using data recorded by the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.9pb-1. Photons are required to have a pseudorapidity |ηγ|<1.45 and ETγ>21GeV, covering the kinematic region 0.006<xT<0.086. The measured cross section is found to be in agreement with next-to-leading-order perturbative QCD calculations. © 2011 American Physical Society.
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Keywords
High energy physics, Photons, Quantum Chromodynamics (QCD), Cross section, Transverse energy, Pseudorapidities, kinematic, 550, P(P)OVER-BAR COLLISIONS, LHC ; CMS ; Physics ; photons, PARTICLE PHYSICS; LARGE HADRON COLLIDER; CMS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pseudorapidities, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], photons, Detectors and Experimental Techniques, info:eu-repo/classification/ddc/530, P(P)over-bar collisions, Fisica delle particelle, photon transverse energy, [Anahtar Kelime Yok], Cross section, CMS, Physics, ddc:530, 001, P(P)Over-Bar Collisions, CMS, LHC, Prompt Photons, photon emission, CERN LHC Coll, Quantum Chromodynamics (QCD), differential cross section, Physique des particules élémentaires, PARTICLE PHYSICS, LHC, Particle Physics - Experiment, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Transverse energy, HEP; LHC; CMS, FOS: Physical sciences, higher-order 1, 530, Physics and Astronomy (all), inclusive producton, quantum chromodynamics: perturbation theory, High energy physics, Photons, Photon direct production, 500, Física, photon production, LARGE HADRON COLLIDER, rapidity
Fields of Science
01 natural sciences, 0103 physical sciences
Citation
Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., ...CMS Collaboration (2011). Measurement of the isolated prompt photons production cross section in pp collisions at √s=7TeV. Physical Review Letters, 106(8). doi:10.1103/PhysRevLett.106.082001
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106
Issue
8
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