Ji, Xiangdong and Zhang, Jian-Hui (2015) Renormalization of quasiparton distribution. PHYSICAL REVIEW D, 92 (3): 034006. ISSN 2470-0010, 2470-0029
Full text not available from this repository.Abstract
Recent developments showed that light-cone parton distributions can be studied by investigating the large momentum limit of the hadronic matrix elements of spacelike correlators, which are known as quasiparton distributions. Like a light-cone parton distribution, a quasiparton distribution also contains ultraviolet divergences and therefore needs renormalization. The renormalization of nonlocal operators in general is not well understood. However, in the case of quasi-quark distribution, the bilinear quark operator with a straight-line gauge link appears to be multiplicatively renormalizable by the quark wave function renormalization in the axial gauge. We first show that the renormalization of the self-energy correction to the quasi-quark distribution is equivalent to that of the heavy-light quark vector current in the heavy quark effective theory at one-loop order. Assuming this equivalence at two-loop order, we then show that the multiplicative renormalizability of the quasi-quark distribution is true at two-loop order.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HEAVY QUARKS; AXIAL GAUGE; LIGHT; LHC; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Jun 2019 12:30 |
| Last Modified: | 14 Jun 2019 12:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5037 |
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