Measurement of the inclusive isolated prompt photon cross-section in <em>pp</em> collisions at √s=7 TeV using 35 pb<sup>−1</sup> of ATLAS data

ATLAS Collaboration

doi:10.1016/j.physletb.2011.11.010

Scientific article

English

Measurement of the inclusive isolated prompt photon cross-section in pp collisions at √s=7 TeV using 35 pb⁻¹ of ATLAS data

Contributors

ATLAS Collaboration

Published in

Physics letters. B, vol. 706, no. 2-3, p. 150-167

Publication date

2011

Abstract

A measurement of the differential cross-section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy √s=7 TeV is presented. The measurement covers the pseudorapidity ranges |η|<1.37 and 1.52⩽|η|<2.37 in the transverse energy range 45⩽ET<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.

Keywords

Photon
ATLAS
LHC
Standard Model

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

ATLAS Collaboration. Measurement of the inclusive isolated prompt photon cross-section in pp collisions at √s=7 TeV using 35 pb⁻¹ of ATLAS data. In: Physics letters. B, 2011, vol. 706, n° 2-3, p. 150–167. doi: 10.1016/j.physletb.2011.11.010

Article (Published version)

Identifiers

PID : unige:40915
DOI : 10.1016/j.physletb.2011.11.010

Additional URL for this publication

http://www.sciencedirect.com/science/article/pii/S0370269311013633#

Journal ISSN

0370-2693

603views

710downloads

Creation

16/10/2014 11:07:00

First validation

16/10/2014 11:07:00

Update

13/10/2025 22:20:17

Status update

14/03/2023 21:51:11

Last indexation

10/11/2026 17:10:20

Measurement of the inclusive isolated prompt photon cross-section in pp collisions at √s=7 TeV using 35 pb⁻¹ of ATLAS data

Contributors

Collaborators

Published in

Publication date

Abstract

Keywords

UNIGE affiliation entities

Citation (ISO format)

Main files (1)

Identifiers

Additional URL for this publication

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation

Measurement of the inclusive isolated prompt photon cross-section in pp collisions at √s=7 TeV using 35 pb−1 of ATLAS data

Contributors

Collaborators

Published in

Publication date

Abstract

Keywords

UNIGE affiliation entities

Citation (ISO format)

Main files (1)

Identifiers

Additional URL for this publication

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation

Measurement of the inclusive isolated prompt photon cross-section in pp collisions at √s=7 TeV using 35 pb⁻¹ of ATLAS data