منابع مشابه
The three-loop QCD β-function and anomalous dimensions
The analytic calculation of the three-loop QCD β-function and anomalous dimensions within the minimal subtraction scheme in an arbitrary covariant guage is presented. The result for the β-function coincides with the previous calculation [1]. on leave from Institute for Nuclear Research (INR) of the Russian Academy of Sciences, Moscow 117312, USSR.
متن کاملThe Four-Loop QCD β-Function and Anomalous Dimensions
The four-loop β-function of quantum chromodynamics is calculated and agreement is found with the previous result. The anomalous dimensions of the quark-gluon vertex, and quark, gluon and ghost fields are given for a general compact simple Lie group.
متن کاملTwo - loop anomalous dimensions for the structure function h
Chiral-odd structure function h1 is expected to be measured in polarized Drell-Yan process. We calculate two-loop anomalous dimensions for h1 in the minimal subtraction scheme. Dimensional regularization and Feynman gauge are used for calculating the two-loop contributions. Our results are important in studying Q2 dependence of h1. 13.88.+e, 13.85.Qk, 12.38.Bx Typeset using REVTEX
متن کاملTwo - loop anomalous dimensions for the structure function h 1
Chiral-odd structure function h 1 is expected to be measured in polarized Drell-Yan process. We calculate two-loop anomalous dimensions for h 1 in the minimal subtraction scheme. Dimensional regularization and Feynman gauge are used for calculating the two-loop contributions. Our results are important in studying Q 2 dependence of h 1 .
متن کاملAnomalous Dimensions and Splitting Functions
I explicitly calculate the anomalous dimensions and splitting functions governing the Q evolution of the parton densities and structure functions which result from the running coupling BFKL equation at LO, i.e. I perform a resummation in powers of ln(1/x) and in powers of β0 simultaneously. This is extended as far as possible to NLO. These are expressed in an exact, perturbatively calculable an...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2011
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.83.116001