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Measurement of the correlation between the polar angles of leptons from top quark decays in the helicity basis at s√=7 TeV using the ATLAS detector
http://hdl.handle.net/2241/00138916
http://hdl.handle.net/2241/001389166d5c8b3e-705e-4d05-8c35-97b8cb74b71b
名前 / ファイル | ライセンス | アクション |
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PRD_93-1 (352.5 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2016-04-22 | |||||
タイトル | ||||||
タイトル | Measurement of the correlation between the polar angles of leptons from top quark decays in the helicity basis at s√=7 TeV using the ATLAS detector | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | 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 | A measurement of the correlations between the polar angles of leptons from the decay of pair-produced t and t ̄ quarks in the helicity basis is reported, using proton-proton collision data collected by the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 4.6 fb^-1 at a center-of-mass energy of s√=7 TeV collected during 2011. Candidate events are selected in the dilepton topology with large missing transverse momentum and at least two jets. The angles θ1 and θ2 between the charged leptons and the direction of motion of the parent quarks in the tt ̄ rest frame are sensitive to the spin information, and the distribution of cosθ1-cosθ2 is sensitive to the spin correlation between the t and t ̄ quarks. The distribution is unfolded to parton level and compared to the next-to-leading order prediction. A good agreement is observed. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 93, 号 1, p. 012002, 発行日 2016-01 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2470-0010 | |||||
NCID | ||||||
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.93.012002 | |||||
権利情報 | ||||||
言語 | en | |||||
権利情報 | (c) 2016 CERN, for the ATLAS Collaboration | |||||
権利情報 | ||||||
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 distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. | |||||
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 | ||||||
出版者 | American Physical Society | |||||
言語 | en |