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Virtual photon structure functions to the next-to-next-to-leading order in QCD
http://hdl.handle.net/10131/7419
http://hdl.handle.net/10131/7419ec930fb1-a0af-40ee-895a-77f455bcc5e5
名前 / ファイル | ライセンス | アクション |
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Phys.Rev.D75.pdf (590.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-03-28 | |||||
タイトル | ||||||
タイトル | Virtual photon structure functions to the next-to-next-to-leading order in QCD | |||||
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 | |||||
著者 |
Ueda, Takahiro
× Ueda, Takahiro× Sasaki, Ken× Uematsu, Tsuneo |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17644 | |||||
姓名 | ウエダ, タカヒロ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17645 | |||||
姓名 | ササキ, ケン | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17646 | |||||
姓名 | ウエマツ, ツネオ | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17647 | |||||
姓名 | 佐々木, 賢 | |||||
著者所属 | ||||||
Department of Physics, Faculty of Engineering, Yokohama National University = 横浜国立大学大学院工学研究院 知的構造の創生部門 物理科学と知の創造分野 | ||||||
著者所属 | ||||||
Department of Physics, Faculty of Engineering, Yokohama National University | ||||||
著者所属 | ||||||
Department of Physics, Graduate School of Science, Kyoto University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigate the unpolarized virtual photon structure functions F2γ(x,Q2,P2) and FLγ(x,Q2,P2) in perturbative QCD for the kinematical region Λ2≪P2≪Q2, where -Q2 (-P2) is the mass squared of the probe (target) photon and Λ is the QCD scale parameter. Using the framework of the operator product expansion supplemented by the renormalization group method, we derive the definite predictions for the moments of F2γ(x,Q2,P2) up to the next-to-next-to-leading order (NNLO) (the order ααs) and for the moments of FLγ(x,Q2,P2) up to the next-to-leading order (NLO) (the order ααs). The NNLO corrections to the sum rule of F2γ(x,Q2,P2) are negative and found to be 7%–10% of the sum of the LO and NLO contributions, when P2=1 GeV2 and Q2=30∼100 GeV2 or P2=3 GeV2 and Q2=100 GeV2, and the number of active quark flavors nf is three or four. The NLO corrections to FLγ are also negative. The moments are inverted numerically to obtain the predictions for F2γ(x,Q2,P2) and FLγ(x,Q2,P2) as functions of x. | |||||
書誌情報 |
Physical review D 巻 75, 号 11, p. 114009, 発行日 2007-06-22 |
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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 | 10.1103/PhysRevD.75.114009 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
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 |