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Aad, G; Åkesson, Torsten; Bocchetta, Simona; Corrigan, Eric Edward; Doglioni, Caterina; Geisen, Jannik; Gregersen, Kristian; Brottmann Hansen, Eva; Hedberg, Vincent; Jarlskog, Göran; Kellermann, Edgar; Konya, Balazs; Lytken, Else; Mankinen, Katja; Marcon, Caterina; Mjörnmark, Ulf; Mullier, Geoffrey André Adrien; Pöttgen, Ruth; Poulsen, Trine; Skorda, Eleni; Smirnova, Oxana; Zwalinski, L
Physical review letters, 2020, Letnik: 125Journal Article
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.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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