Measurement of the inclusive isolated prompt photon cross-section in pp collisions at root s=7 TeV using 35 pb(-1) of ATLAS data
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 {radical}s = 7 TeV is presented. The measurement covers the pseudorapidity ranges |{eta}| < 1.37 and 1.52 {le} |{eta}| < 2.37 in the transverse energy range 45 {le} E{sub T} < 400 GeV. The results are based on an integrated luminosity of 35 pb{sup -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.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE SC OFFICE OF SCIENCE (SC)
- OSTI Identifier:
- 1037709
- Report Number(s):
- BNL-97100-2012-JA
Journal ID: ISSN 0370-2693; KA1101021; TRN: US1201677
- DOE Contract Number:
- DE-AC02-98CH10886
- Resource Type:
- Journal Article
- Journal Name:
- Physics Letters, (Section) B
- Additional Journal Information:
- Journal Volume: 706; Journal Issue: 2-3; Journal ID: ISSN 0370-2693
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONES; DIFFERENTIAL CROSS SECTIONS; DISTRIBUTION; LUMINOSITY; PHOTONS; PRODUCTION; QUANTUM CHROMODYNAMICS; STANDARD MODEL; TRANSVERSE ENERGY
Citation Formats
Aad, G, Abbott, B, Abdallah, J, Abdelalim, AA, Abdesselam, A, Abdinov, O, Abi, B, Abolins, M, Abramowicz, H, Abreu, H, Acerbi, E, Acharya, BS, Adams, DL, Addy, TN, Adelman, J, Aderholz, M, Adomeit, S, Adragna, P, Adye, T, Aefsky, S, and Aguilar-Saavedra, JA. Measurement of the inclusive isolated prompt photon cross-section in pp collisions at root s=7 TeV using 35 pb(-1) of ATLAS data. United States: N. p., 2011.
Web. doi:10.1016/j.physletb.2011.11.010.
Aad, G, Abbott, B, Abdallah, J, Abdelalim, AA, Abdesselam, A, Abdinov, O, Abi, B, Abolins, M, Abramowicz, H, Abreu, H, Acerbi, E, Acharya, BS, Adams, DL, Addy, TN, Adelman, J, Aderholz, M, Adomeit, S, Adragna, P, Adye, T, Aefsky, S, & Aguilar-Saavedra, JA. Measurement of the inclusive isolated prompt photon cross-section in pp collisions at root s=7 TeV using 35 pb(-1) of ATLAS data. United States. https://doi.org/10.1016/j.physletb.2011.11.010
Aad, G, Abbott, B, Abdallah, J, Abdelalim, AA, Abdesselam, A, Abdinov, O, Abi, B, Abolins, M, Abramowicz, H, Abreu, H, Acerbi, E, Acharya, BS, Adams, DL, Addy, TN, Adelman, J, Aderholz, M, Adomeit, S, Adragna, P, Adye, T, Aefsky, S, and Aguilar-Saavedra, JA. 2011.
"Measurement of the inclusive isolated prompt photon cross-section in pp collisions at root s=7 TeV using 35 pb(-1) of ATLAS data". United States. https://doi.org/10.1016/j.physletb.2011.11.010.
@article{osti_1037709,
title = {Measurement of the inclusive isolated prompt photon cross-section in pp collisions at root s=7 TeV using 35 pb(-1) of ATLAS data},
author = {Aad, G and Abbott, B and Abdallah, J and Abdelalim, AA and Abdesselam, A and Abdinov, O and Abi, B and Abolins, M and Abramowicz, H and Abreu, H and Acerbi, E and Acharya, BS and Adams, DL and Addy, TN and Adelman, J and Aderholz, M and Adomeit, S and Adragna, P and Adye, T and Aefsky, S and Aguilar-Saavedra, JA},
abstractNote = {A measurement of the differential cross-section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy {radical}s = 7 TeV is presented. The measurement covers the pseudorapidity ranges |{eta}| < 1.37 and 1.52 {le} |{eta}| < 2.37 in the transverse energy range 45 {le} E{sub T} < 400 GeV. The results are based on an integrated luminosity of 35 pb{sup -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.},
doi = {10.1016/j.physletb.2011.11.010},
url = {https://www.osti.gov/biblio/1037709},
journal = {Physics Letters, (Section) B},
issn = {0370-2693},
number = 2-3,
volume = 706,
place = {United States},
year = {Tue Dec 06 00:00:00 EST 2011},
month = {Tue Dec 06 00:00:00 EST 2011}
}