Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector
A measurement of the cross section for the production of an isolated photon in association with jets in proton-proton collisions at a center-of-mass energy √s=7 TeV is presented. Photons are reconstructed in the pseudorapidity range |ηγ|<1.37 and with a transverse energy ETγ>25 GeV. Jets are...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/71569 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826209198843625472 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | A measurement of the cross section for the production of an isolated photon in association with jets in proton-proton collisions at a center-of-mass energy √s=7 TeV is presented. Photons are reconstructed in the pseudorapidity range |ηγ|<1.37 and with a transverse energy ETγ>25 GeV. Jets are reconstructed in the rapidity range |yjet|<4.4 and with a transverse momentum pTjet>20 GeV. The differential cross section dσ/dETγ is measured, as a function of the photon transverse energy, for three different rapidity ranges of the leading-pT jet: |yjet|<1.2, 1.2≤|yjet|<2.8 and 2.8≤|yjet|<4.4. For each rapidity configuration the same-sign (ηγyjet≥0) and opposite-sign (ηγyjet<0) cases are studied separately. The results are based on an integrated luminosity of 37 pb-1, collected with the ATLAS detector at the LHC. Next-to-leading order perturbative QCD calculations are found to be in fair agreement with the data, except for ETγ[less than or equivalent to]45 GeV, where the theoretical measured cross sections. |
| first_indexed | 2024-09-23T14:18:46Z |
| format | Article |
| id | mit-1721.1/71569 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:18:46Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/715692022-09-29T08:36:59Z Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Taylor, Frank E. A measurement of the cross section for the production of an isolated photon in association with jets in proton-proton collisions at a center-of-mass energy √s=7 TeV is presented. Photons are reconstructed in the pseudorapidity range |ηγ|<1.37 and with a transverse energy ETγ>25 GeV. Jets are reconstructed in the rapidity range |yjet|<4.4 and with a transverse momentum pTjet>20 GeV. The differential cross section dσ/dETγ is measured, as a function of the photon transverse energy, for three different rapidity ranges of the leading-pT jet: |yjet|<1.2, 1.2≤|yjet|<2.8 and 2.8≤|yjet|<4.4. For each rapidity configuration the same-sign (ηγyjet≥0) and opposite-sign (ηγyjet<0) cases are studied separately. The results are based on an integrated luminosity of 37 pb-1, collected with the ATLAS detector at the LHC. Next-to-leading order perturbative QCD calculations are found to be in fair agreement with the data, except for ETγ[less than or equivalent to]45 GeV, where the theoretical measured cross sections. 2012-07-10T15:52:31Z 2012-07-10T15:52:31Z 2012-05 2012-03 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/71569 G. Aad et al. (ATLAS Collaboration). "Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector" Physical Review Letters 85, 092014 (2012). © 2012 CERN, for the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevD.85.092014 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Taylor, Frank E. Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector |
| title | Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector |
| title_full | Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector |
| title_fullStr | Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector |
| title_full_unstemmed | Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector |
| title_short | Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at √s=7 TeV with the ATLAS detector |
| title_sort | measurement of the production cross section of an isolated photon associated with jets in proton proton collisions at √s 7 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/71569 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke measurementoftheproductioncrosssectionofanisolatedphotonassociatedwithjetsinprotonprotoncollisionsats7tevwiththeatlasdetector |