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- Publisher Website: 10.1103/PhysRevLett.121.212301
- Scopus: eid_2-s2.0-85057454413
- PMID: 30517793
- WOS: WOS:000450552800004
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Article: Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb + Pb Collisions at √sNN=5.02 TeV with the ATLAS Detector
Title | Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb + Pb Collisions at √sNN=5.02 TeV with the ATLAS Detector |
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Authors | |
Issue Date | 2018 |
Publisher | American Physical Society. The Journal's web site is located at http://prl.aps.org |
Citation | Physical Review Letters, 2018, v. 121 n. 21, article no. 212301 , p. 1-21 How to Cite? |
Abstract | This Letter presents a measurement of γγ→μ+μ- production in Pb+Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at sNN=5.02 TeV with an integrated luminosity of 0.49 nb-1. The azimuthal angle and transverse momentum correlations between the muons are measured as a function of collision centrality. The muon pairs are produced from γγ through the interaction of the large electromagnetic fields of the nuclei. The contribution from background sources of muon pairs is removed using a template fit method. In peripheral collisions, the muons exhibit a strong back-to-back correlation consistent with previous measurements of muon pair production in ultraperipheral collisions. The angular correlations are observed to broaden significantly in central collisions. The modifications are qualitatively consistent with rescattering of the muons while passing through the hot matter produced in the collision. |
Persistent Identifier | http://hdl.handle.net/10722/266042 |
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Lo, CY | - |
dc.contributor.author | Orlando, N | - |
dc.contributor.author | Paredes Hernandez, DK | - |
dc.contributor.author | Tu, Y | - |
dc.contributor.author | ATLAS Collaboration | - |
dc.date.accessioned | 2018-12-17T02:16:37Z | - |
dc.date.available | 2018-12-17T02:16:37Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Physical Review Letters, 2018, v. 121 n. 21, article no. 212301 , p. 1-21 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/266042 | - |
dc.description.abstract | This Letter presents a measurement of γγ→μ+μ- production in Pb+Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at sNN=5.02 TeV with an integrated luminosity of 0.49 nb-1. The azimuthal angle and transverse momentum correlations between the muons are measured as a function of collision centrality. The muon pairs are produced from γγ through the interaction of the large electromagnetic fields of the nuclei. The contribution from background sources of muon pairs is removed using a template fit method. In peripheral collisions, the muons exhibit a strong back-to-back correlation consistent with previous measurements of muon pair production in ultraperipheral collisions. The angular correlations are observed to broaden significantly in central collisions. The modifications are qualitatively consistent with rescattering of the muons while passing through the hot matter produced in the collision. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://prl.aps.org | - |
dc.relation.ispartof | Physical Review Letters | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb + Pb Collisions at √sNN=5.02 TeV with the ATLAS Detector | - |
dc.type | Article | - |
dc.identifier.email | Orlando, N: norlando@HKUCC-COM.hku.hk | - |
dc.identifier.email | Paredes Hernandez, DK: dparedes@hku.hk | - |
dc.identifier.email | Tu, Y: yanjuntu@hku.hk | - |
dc.identifier.authority | Tu, Y=rp01971 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1103/PhysRevLett.121.212301 | - |
dc.identifier.pmid | 30517793 | - |
dc.identifier.scopus | eid_2-s2.0-85057454413 | - |
dc.identifier.hkuros | 296375 | - |
dc.identifier.volume | 121 | - |
dc.identifier.issue | 21 | - |
dc.identifier.spage | article no. 212301, p. 1 | - |
dc.identifier.epage | article no. 212301, p. 21 | - |
dc.identifier.isi | WOS:000450552800004 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0031-9007 | - |