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Measurement of parity-violating spin asymmetries in W± production at midrapidity in longitudinally polarized p+p collisions
http://hdl.handle.net/2241/00141829
http://hdl.handle.net/2241/00141829e2095e27-f077-4720-9d2f-01e4a8f33400
名前 / ファイル | ライセンス | アクション |
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PRD_93-5-051103 (301.7 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2016-05-27 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Measurement of parity-violating spin asymmetries in W± production at midrapidity in longitudinally polarized p+p collisions | |||||
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 |
PHENI Collaboration
× PHENI Collaboration× 中條, 達也× 江角, 晋一× 三明, 康郎 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We present midrapidity measurements from the PHENIX experiment of large parity-violating single-spin asymmetries of high transverse momentum electrons and positrons from W±/Z decays, produced in longitudinally polarized p+p collisions at center of mass energies of s√=500 and 510 GeV. These asymmetries allow direct access to the antiquark polarized parton distribution functions due to the parity-violating nature of the W-boson coupling to quarks and antiquarks. The results presented are based on data collected in 2011, 2012, and 2013 with an integrated luminosity of 240 pb^-1, which exceeds previous PHENIX published results by a factor of more than 27. These high Q^2 data probe the parton structure of the proton at W mass scale and provide an important addition to our understanding of the antiquark parton helicity distribution functions at an intermediate Bjorken x value of roughly MW/s√=0.16 | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 93, 号 5, p. 051103, 発行日 2016-03 |
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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.93.051103 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | (c) 2016 American Physical Society | |||||
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 |