Prompt photon production and photon-jet correlations at the LHC
Abstract Next-to-leading order predictions matched to parton showers are compared with recent ATLAS data on isolated photon production and CMS data on associated photon and jet production in pp and pPb collisions at different centre-of-mass energies of the LHC. We find good agreement and, as expecte...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-03-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP03(2018)081 |
| _version_ | 1818126469812977664 |
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| author | Michael Klasen Christian Klein-Bösing Hendrik Poppenborg |
| author_facet | Michael Klasen Christian Klein-Bösing Hendrik Poppenborg |
| author_sort | Michael Klasen |
| collection | DOAJ |
| description | Abstract Next-to-leading order predictions matched to parton showers are compared with recent ATLAS data on isolated photon production and CMS data on associated photon and jet production in pp and pPb collisions at different centre-of-mass energies of the LHC. We find good agreement and, as expected, considerably reduced scale uncertainties compared to previous theoretical calculations. Predictions are made for the ratio of inclusive photons over decay photons R γ , an important quantity to evaluate the significance of additional photon sources, e.g. thermal radiation from a Quark-Gluon-Plasma, and for distributions in the parton momentum fraction in lead ions x Pb obs , that could be determined by ALICE, ATLAS, CMS and LHCb in ongoing analyses of photon+jet production in pPb collisions at s N N = 5.02 $$ \sqrt{s_{N\ N}} = 5.02 $$ TeV. These data should have an important impact on the determination of nuclear effects such as shadowing at low x. |
| first_indexed | 2024-12-11T07:01:58Z |
| format | Article |
| id | doaj.art-b303a12d1104410eaa65e485165c7778 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-11T07:01:58Z |
| publishDate | 2018-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-b303a12d1104410eaa65e485165c77782022-12-22T01:16:36ZengSpringerOpenJournal of High Energy Physics1029-84792018-03-012018312310.1007/JHEP03(2018)081Prompt photon production and photon-jet correlations at the LHCMichael Klasen0Christian Klein-Bösing1Hendrik Poppenborg2Institut für Theoretische Physik, Westfälische Wilhelms-Universität MünsterInstitut für Kernphysik, Westfälische Wilhelms-Universität MünsterInstitut für Kernphysik, Westfälische Wilhelms-Universität MünsterAbstract Next-to-leading order predictions matched to parton showers are compared with recent ATLAS data on isolated photon production and CMS data on associated photon and jet production in pp and pPb collisions at different centre-of-mass energies of the LHC. We find good agreement and, as expected, considerably reduced scale uncertainties compared to previous theoretical calculations. Predictions are made for the ratio of inclusive photons over decay photons R γ , an important quantity to evaluate the significance of additional photon sources, e.g. thermal radiation from a Quark-Gluon-Plasma, and for distributions in the parton momentum fraction in lead ions x Pb obs , that could be determined by ALICE, ATLAS, CMS and LHCb in ongoing analyses of photon+jet production in pPb collisions at s N N = 5.02 $$ \sqrt{s_{N\ N}} = 5.02 $$ TeV. These data should have an important impact on the determination of nuclear effects such as shadowing at low x.http://link.springer.com/article/10.1007/JHEP03(2018)081Heavy Ion PhenomenologyNLO Computations |
| spellingShingle | Michael Klasen Christian Klein-Bösing Hendrik Poppenborg Prompt photon production and photon-jet correlations at the LHC Journal of High Energy Physics Heavy Ion Phenomenology NLO Computations |
| title | Prompt photon production and photon-jet correlations at the LHC |
| title_full | Prompt photon production and photon-jet correlations at the LHC |
| title_fullStr | Prompt photon production and photon-jet correlations at the LHC |
| title_full_unstemmed | Prompt photon production and photon-jet correlations at the LHC |
| title_short | Prompt photon production and photon-jet correlations at the LHC |
| title_sort | prompt photon production and photon jet correlations at the lhc |
| topic | Heavy Ion Phenomenology NLO Computations |
| url | http://link.springer.com/article/10.1007/JHEP03(2018)081 |
| work_keys_str_mv | AT michaelklasen promptphotonproductionandphotonjetcorrelationsatthelhc AT christiankleinbosing promptphotonproductionandphotonjetcorrelationsatthelhc AT hendrikpoppenborg promptphotonproductionandphotonjetcorrelationsatthelhc |