期刊論文

學年 90
學期 1
出版(發表)日期 2002-01-01
作品名稱 Dynamical renormalization group approach to the altarelli-parisi-lipatov equations
作品名稱(其他語言)
著者 Boyanovsky, D.; de Vega, H.J.; Lee, D.S.; Wang, S.Y.; Yu, H.L.
單位 淡江大學物理學系
出版者 College Park: American Physical Society
著錄名稱、卷期、頁數 Physical Review D (Particles and Fields) 65(4), 045014(7 pages)
摘要 The Altarelli-Parisi-Lipatov equations for the parton distribution functions are rederived using the dynamical renormalization group approach to quantum kinetics. This method systematically treats the ln Q^2 corrections that arises in perturbation theory as a renormalization of the parton distribution function and unambiguously indicates that the strong coupling must be allowed to run with the scale in the evolution kernel. To leading logarithmic accuracy the evolution equation is Markovian and the logarithmic divergences in the perturbative expansion are identified with the secular divergences (terms that grow in time) that emerge in a perturbative treatment of the kinetic equations in nonequilibrium systems. The resummation of the leading logarithms by the Altarelli-Parisi-Lipatov equation is thus similar to the resummation of the leading secular terms by the Boltzmann kinetic equation.
關鍵字
語言 en
ISSN 0556-2821
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度
國別 USA
公開徵稿
出版型式 紙本
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