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Measurement of the inclusive isolated prompt photon cross-section in pp collisions at root s=7 TeV using 35 pb(-1) of ATLAS data
DESY, D-2000 Hamburg, Germany .
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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2011 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 706, no 2-3, 150-167 p.Article in journal (Refereed) Published
Abstract [en]

A measurement of the differential cross-section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy root s = 7 TeV is presented. The measurement covers the pseudorapidity ranges vertical bar eta vertical bar < 1.37 and 1.52 <= vertical bar eta vertical bar < 2.37 in the transverse energy range 45 <= E(T) < 400 GeV. The results are based on an integrated luminosity of 35 pb(-1), collected with the ATLAS detector at the LHC. The yields of the signal photons are measured using a data-driven technique, based on the observed distribution of the hadronic energy in a narrow cone around the photon candidate and the photon selection criteria. The results are compared with next-to-leading order perturbative QCD calculations and found to be in good agreement over four orders of magnitude in cross-section.

Place, publisher, year, edition, pages
2011. Vol. 706, no 2-3, 150-167 p.
Keyword [en]
Photon, ATLAS, LHC, Standard Model
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-71577DOI: 10.1016/j.physletb.2011.11.010ISI: 000298338000006Scopus ID: 2-s2.0-84855192503OAI: oai:DiVA.org:kth-71577DiVA: diva2:487985
Note
QC 20120201Available from: 2012-02-01 Created: 2012-01-31 Last updated: 2017-12-08Bibliographically approved

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Strandberg, Jonas

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