Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/123589
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dc.contributor.author | Aad, G. | - |
dc.contributor.author | Abbott, B. | - |
dc.contributor.author | Abbott, D.C. | - |
dc.contributor.author | Abdinov, O. | - |
dc.contributor.author | Abud, A.A. | - |
dc.contributor.author | Abeling, K. | - |
dc.contributor.author | Abhayasinghe, D.K. | - |
dc.contributor.author | Abidi, S.H. | - |
dc.contributor.author | AbouZeid, O.S. | - |
dc.contributor.author | Abraham, N.L. | - |
dc.contributor.author | Abramowicz, H. | - |
dc.contributor.author | Abreu, H. | - |
dc.contributor.author | Abulaiti, Y. | - |
dc.contributor.author | Acharya, B.S. | - |
dc.contributor.author | Achkar, B. | - |
dc.contributor.author | Adachi, S. | - |
dc.contributor.author | Adam, L. | - |
dc.contributor.author | Bourdarios, C.A. | - |
dc.contributor.author | Adamczyk, L. | - |
dc.contributor.author | Adamek, L. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Physical Review Letters, 2019; 123(5):052001-1-052001-21 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.issn | 1079-7114 | - |
dc.identifier.uri | http://hdl.handle.net/2440/123589 | - |
dc.description.abstract | This Letter describes the observation of the light-by-light scattering process, γγ→γγ, in Pb+Pb collisions at sqrt[s_{NN}]=5.02 TeV. The analysis is conducted using a data sample corresponding to an integrated luminosity of 1.73 nb^{-1}, collected in November 2018 by the ATLAS experiment at the LHC. Light-by-light scattering candidates are selected in events with two photons produced exclusively, each with transverse energy E_{T}^{γ}>3 GeV and pseudorapidity |η_{γ}|<2.4, diphoton invariant mass above 6 GeV, and small diphoton transverse momentum and acoplanarity. After applying all selection criteria, 59 candidate events are observed for a background expectation of 12±3 events. The observed excess of events over the expected background has a significance of 8.2 standard deviations. The measured fiducial cross section is 78±13(stat)±7(syst)±3(lumi) nb. | - |
dc.description.statementofresponsibility | G. Aad ... D. Duvnjak ... P. Jackson ... J.L. Oliver ... A. Petridis ... A. Qureshi ... A.S. Sharma ... M.J. White ... et al. [The ATLAS Collaboration] | - |
dc.language.iso | en | - |
dc.publisher | American Physical Society | - |
dc.rights | © 2019 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³. | - |
dc.source.uri | http://dx.doi.org/10.1103/physrevlett.123.052001 | - |
dc.subject | ATLAS Collaboration | - |
dc.title | Observation of light-by-light scattering in ultraperipheral Pb + Pb collisions with the ATLAS detector | - |
dc.title.alternative | Observation of light-by-light scattering in ultraperipheral Pb plus Pb collisions with the ATLAS detector | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1103/PhysRevLett.123.052001 | - |
dc.relation.grant | ARC | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Jackson, P. [0000-0002-0847-402X] | - |
dc.identifier.orcid | Potti, H. [0000-0002-0800-9902] | - |
dc.identifier.orcid | Sato, K. [0000-0001-8988-4065] | - |
dc.identifier.orcid | White, M.J. [0000-0001-5474-4580] | - |
Appears in Collections: | Aurora harvest 8 Physics publications |
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hdl_123589.pdf | Published version | 414.29 kB | Adobe PDF | View/Open |
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