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Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at √s=510??GeV
http://hdl.handle.net/2241/00157718
http://hdl.handle.net/2241/00157718e77e15cb-73c1-41ab-8aa0-f4b988a838ac
名前 / ファイル | ライセンス | アクション |
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PRD_99-5-051102 (478.2 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2019-09-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at √s=510??GeV | |||||
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 |
江角, 晋一
× 江角, 晋一× STA Collaboration |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We report new STAR measurements of the single-spin asymmetries AL for W+ and W? bosons produced in polarized proton-proton collisions at √s=510??GeV as a function of the decay-positron and decay-electron pseudorapidity. The data were obtained in 2013 and correspond to an integrated luminosity of 250??pb?1. The results are combined with previous results obtained with 86??pb?1. A comparison with theoretical expectations based on polarized lepton-nucleon deep-inelastic scattering and prior polarized proton-proton data suggests a difference between the  ̄u and  ̄d quark helicity distributions for 0.05<x<0.25. In addition, we report new results for the double-spin asymmetries ALL for W±, as well as AL for Z/γ? production and subsequent decay into electron-positron pairs. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 99, 号 5, p. 051102, 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.99.051102 | |||||
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 |