Heavy quark effects on parton distribution functions in the unpolarized virtual photon up to the next-to-leading order in QCD
スポンサーリンク
概要
- 論文の詳細を見る
We investigate the heavy-quark mass effects on the parton distribution functions in the unpolarized virtual photon up to the next-to-leading order in QCD. Our formalism is based on the QCD-improved parton model described by the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equation as well as on the operator product expansion supplemented by the mass-independent renormalization group method. We evaluate the various components of the parton distributions inside the virtual photon with the massive quark effects, which are included through the initial condition for the heavy-quark distributions, or equivalently from the matrix element of the heavy-quark operators. We discuss some features of our results for the heavy-quark effects and their factorization-scheme dependence.
- American Physical Societyの論文
- 2010-04-23
著者
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UEMATSU Tsuneo
Department of Physics, Graduate School of Science, Kyoto University
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SASAKI Ken
Department of Physics, Faculty of Engineering, Yokohama National University
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