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Measurements of Zγ and Zγγ production in pp collisions at √s=8 TeV with the ATLAS detector
http://hdl.handle.net/2241/00143253
http://hdl.handle.net/2241/001432537739c7dc-4776-45ac-b64a-4c78da389987
名前 / ファイル | ライセンス | アクション |
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PRD_93-11-112002 (1.2 MB)
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Item type | Journal Article(1) | |||||
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公開日 | 2016-07-15 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Measurements of Zγ and Zγγ production in pp collisions at √s=8 TeV with the ATLAS detector | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
ATLA Collaboration
× ATLA Collaboration× 原, 和彦× 金, 信弘× 大川, 英希× 佐藤, 構二× 受川, 史彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The production of Z bosons with one or two isolated high-energy photons is studied using pp collisions at s√=8 TeV. The analyses use a data sample with an integrated luminosity of 20.3 fb^-1 collected by the ATLAS detector during the 2012 LHC data taking. The Zγ and Zγγ production cross sections are measured with leptonic (e+e-, μ+μ-, νν ̄) decays of the Z boson, in extended fiducial regions defined in terms of the lepton and photon acceptance. They are then compared to cross-section predictions from the Standard Model, where the sources of the photons are radiation off initial-state quarks and radiative Z-boson decay to charged leptons, and from fragmentation of final-state quarks and gluons into photons. The yields of events with photon transverse energy ET>250 GeV from l^+l^-γ events and with ET>400 GeV from νν ̄γ events are used to search for anomalous triple gauge-boson couplings ZZγ and Zγγ. The yields of events with diphoton invariant mass mγγ>200 GeV from l^+l^-γγ events and with mγγ>300 GeV from νν ̄γγ events are used to search for anomalous quartic gauge-boson couplings ZZγγ and Zγγγ. No deviations from Standard Model predictions are observed and limits are placed on parameters used to describe anomalous triple and quartic gauge-boson couplings. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 93, 号 11, p. 112002, 発行日 2016-06 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2470-0010 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00773624 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevD.93.112002 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License . Further distri- bution of this work must maintain attribution to the author(s) and the published article ’ s title, journal citation, and DOI | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | (c) 2016 CERN, for the ATLAS Collaboration | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society |