Ma, JP (reprint author), Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
部门归属:
[Ma, J. P.] Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China; [Ma, J. P.] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [Wang, Q.] Nanjing Normal Univ, Dept Phys, Nanjing 210097, Jiangsu, Peoples R China; [Wang, Q.] Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210097, Jiangsu, Peoples R China; [Zhang, G. P.] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
英文摘要:
We study the scale dependence of twist-3 distributions defined with chirality-odd quark-gluon operators. To derive the scale dependence we explicitly calculate these distributions of multi-patron states instead of a hadron. Taking one-loop corrections into account we obtain the leading evolution kernel in the most general case. In some special cases the evolutions are simplified. We observe that the obtained kernel in general does not get simplified in the large-N-c limit in contrast to the case of those twist-3 distributions defined only with chirality-odd quark operators. In the later, the simplification is significant. (C) 2012 Elsevier B.V. All rights reserved.
