Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

G. Aad..[et al.]; Mogens Dam; John Renner Hansen; Jørgen Beck Hansen; Jørn Dines Hansen; Peter Henrik Hansen; Morten Dam Jørgensen; Esben Bryndt Klinkby; Björn Stefan Nilsson; Troels Christian Petersen; Stefania Xella; Nele Maria Philomena Boelaert; Thomas Høvring Kittelmann

doi:10.1103/PhysRevD.83.052005

Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

G. Aad..[et al.], Mogens Dam, John Renner Hansen, Jørgen Beck Hansen, Jørn Dines Hansen, Peter Henrik Hansen, Morten Dam Jørgensen, Esben Bryndt Klinkby, Björn Stefan Nilsson, Troels Christian Petersen, Stefania Xella, Nele Maria Philomena Boelaert, Thomas Høvring Kittelmann

149 Citations (Scopus)

Abstract

A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy √s=7TeV is presented. The measurement covers the pseudorapidity ranges |ηγ|<1. 37 and 1.52≤|ηγ|<1.81 in the transverse energy range 15≤ETγ<100GeV. The results are based on an integrated luminosity of 880nb^-1, collected with the ATLAS detector at the Large Hadron Collider. Photon candidates are identified by combining information from the calorimeters and from the inner tracker. Residual background in the selected sample is estimated from data based on the observed distribution of the transverse isolation energy in a narrow cone around the photon candidate. The results are compared to predictions from next-to-leading-order perturbative QCD calculations.

Original language	English
Journal	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Volume	83
Issue number	5
Pages (from-to)	062005
Number of pages	31
ISSN	1550-7998
DOIs	https://doi.org/10.1103/PhysRevD.83.052005
Publication status	Published - 18 Mar 2011

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Aad..[et al.], G., Dam, M., Hansen, J. R., Hansen, J. B., Hansen, J. D., Hansen, P. H., Jørgensen, M. D., Klinkby, E. B., Nilsson, B. S., Petersen, T. C., Xella, S., Boelaert, N. M. P., & Kittelmann, T. H. (2011). Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector. Physical Review D (Particles, Fields, Gravitation and Cosmology), 83(5), 062005. https://doi.org/10.1103/PhysRevD.83.052005

Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector. / Aad..[et al.], G.; Dam, Mogens ; Hansen, John Renner et al.

In: Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol. 83, No. 5, 18.03.2011, p. 062005.

Research output: Contribution to journal › Journal article › Research › peer-review

Aad..[et al.], G, Dam, M , Hansen, JR , Hansen, JB , Hansen, JD , Hansen, PH, Jørgensen, MD, Klinkby, EB, Nilsson, BS, Petersen, TC , Xella, S, Boelaert, NMP & Kittelmann, TH 2011, 'Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector', Physical Review D (Particles, Fields, Gravitation and Cosmology), vol. 83, no. 5, pp. 062005. https://doi.org/10.1103/PhysRevD.83.052005

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title = "Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector",

abstract = "A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy √s=7TeV is presented. The measurement covers the pseudorapidity ranges |ηγ|<1. 37 and 1.52≤|ηγ|<1.81 in the transverse energy range 15≤ETγ<100GeV. The results are based on an integrated luminosity of 880nb-1, collected with the ATLAS detector at the Large Hadron Collider. Photon candidates are identified by combining information from the calorimeters and from the inner tracker. Residual background in the selected sample is estimated from data based on the observed distribution of the transverse isolation energy in a narrow cone around the photon candidate. The results are compared to predictions from next-to-leading-order perturbative QCD calculations.",

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AU - Aad..[et al.], G.

AU - Dam, Mogens

AU - Hansen, John Renner

AU - Hansen, Jørgen Beck

AU - Hansen, Jørn Dines

AU - Hansen, Peter Henrik

AU - Jørgensen, Morten Dam

AU - Klinkby, Esben Bryndt

AU - Nilsson, Björn Stefan

AU - Petersen, Troels Christian

AU - Xella, Stefania

AU - Boelaert, Nele Maria Philomena

AU - Kittelmann, Thomas Høvring

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N2 - A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy √s=7TeV is presented. The measurement covers the pseudorapidity ranges |ηγ|<1. 37 and 1.52≤|ηγ|<1.81 in the transverse energy range 15≤ETγ<100GeV. The results are based on an integrated luminosity of 880nb-1, collected with the ATLAS detector at the Large Hadron Collider. Photon candidates are identified by combining information from the calorimeters and from the inner tracker. Residual background in the selected sample is estimated from data based on the observed distribution of the transverse isolation energy in a narrow cone around the photon candidate. The results are compared to predictions from next-to-leading-order perturbative QCD calculations.

AB - A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy √s=7TeV is presented. The measurement covers the pseudorapidity ranges |ηγ|<1. 37 and 1.52≤|ηγ|<1.81 in the transverse energy range 15≤ETγ<100GeV. The results are based on an integrated luminosity of 880nb-1, collected with the ATLAS detector at the Large Hadron Collider. Photon candidates are identified by combining information from the calorimeters and from the inner tracker. Residual background in the selected sample is estimated from data based on the observed distribution of the transverse isolation energy in a narrow cone around the photon candidate. The results are compared to predictions from next-to-leading-order perturbative QCD calculations.

U2 - 10.1103/PhysRevD.83.052005

DO - 10.1103/PhysRevD.83.052005

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SP - 062005

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JF - Physical Review D

IS - 5

ER -

Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

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