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題 名 | Resummation Approach to Evolution Equations=演化方程式的重加理論研究 |
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作 者 | 李湘楠; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷 期 | 23:5 1999.09[民88.09] |
頁 次 | 頁567-578 |
分類號 | 330 |
關鍵詞 | 演化方程式; 重加理論; 動量轉移; Perturbative QCD; Resummation technique; Parton distribution functions; Evolution equations; |
語 文 | 英文(English) |
英文摘要 | We derive the evolution equations of parton distribution functions appropriate in different kinematic regions in a unified and simple way using the Collins-Soper (CS) resummation technique. These equations include the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) equation for a large momentum transfer Q, the Balitsky-Fadin-Kuraev-Lipatov (BFKL) equation for a small Bjorken variable x, and the Ciafaloni-Catani-Fiorani-Marchesini (CCFM) equation, which unifies the above two equations. We propose a modified Balitsky-Fadin-Kuraev-Lipatov equation in the resummation framework, which possesses an intrinsic Q dependence, and show that its predictions for the structure function F2(x,Q2) are consistent with experimental data. |
本系統中英文摘要資訊取自各篇刊載內容。