Journal article
Observation and measurement of forward proton scattering in association with lepton pairs produced via the photon fusion mechanism at ATLAS
- Abstract:
- The observation of forward proton scattering in association with lepton pairs (e+e−+p or μ+μ−+p) produced via photon fusion is presented. The scattered proton is detected by the ATLAS Forward Proton spectrometer, while the leptons are reconstructed by the central ATLAS detector. Proton-proton collision data recorded in 2017 at a center-of-mass energy of √s=13 TeV are analyzed, corresponding to an integrated luminosity of 14.6 fb−1. A total of 57 (123) candidates in the ee+p (μμ+p) final state are selected, allowing the background-only hypothesis to be rejected with a significance exceeding 5 standard deviations in each channel. Proton-tagging techniques are introduced for cross-section measurements in the fiducial detector acceptance, corresponding to σee+p=11.0±2.6(stat)±1.2(syst)±0.3(lumi) and σμμ+p=7.2±1.6(stat)±0.9(syst)±0.2(lumi) fb in the dielectron and dimuon channel, respectively.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 517.5KB, Terms of use)
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- Publisher copy:
- 10.1103/physrevlett.125.261801
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 125
- Issue:
- 26
- Article number:
- 261801
- Publication date:
- 2020-12-23
- Acceptance date:
- 2020-11-23
- DOI:
- EISSN:
-
1079-7114
- ISSN:
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0031-9007
- Language:
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English
- Keywords:
- Pubs id:
-
1152161
- Local pid:
-
pubs:1152161
- Deposit date:
-
2021-01-06
Terms of use
- Copyright holder:
- CERN, for the ATLAS Collaboration.
- Copyright date:
- 2020
- Rights statement:
- © 2020 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.
- Licence:
- CC Attribution (CC BY)
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