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Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in pp collisions at √s=13??TeV with the ATLAS detector
http://hdl.handle.net/2241/00157368
http://hdl.handle.net/2241/001573688c699746-b306-4d6a-a703-46a96ca536a3
名前 / ファイル | ライセンス | アクション |
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PRD_99-5-052009 (1.1 MB)
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Item type | Journal Article(1) | |||||
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公開日 | 2019-08-23 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in pp collisions at √s=13??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 |
原, 和彦
× 原, 和彦× 大川, 英希× 佐藤, 構二× 受川, 史彦× ATLA Collaboration |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A search for four-top-quark production, t ̄tt ̄t, is presented. It is based on proton-proton collision data with a center-of-mass energy √s=13??TeV collected by the ATLAS detector at the Large Hadron Collider during the years 2015 and 2016, corresponding to an integrated luminosity of 36.1??fb?1. Data are analyzed in both the single-lepton and opposite-sign dilepton channels, characterized by the presence of one or two isolated electrons or muons with high-transverse momentum and multiple jets. A data-driven method is used to estimate the dominant background from top-quark pair production in association with jets. No significant excess above the Standard Model expectation is observed. The result is combined with the previous same-sign dilepton and multilepton searches carried out by the ATLAS Collaboration and an observed (expected) upper limit of 5.3 (2.1) times the four-top-quark Standard Model cross section is obtained at 95% confidence level. Additionally, an upper limit on the anomalous four-top-quark production cross section is set in the context of an effective field theory model. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 99, 号 5, p. 052009, 発行日 2019-03 |
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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.99.052009 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | c 2019 CERN, for the ATLAS Collaboration | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | 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. | |||||
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 |