Zhang, Jian-Hui and Ji, Xiangdong and Schaefer, Andreas and Wang, Wei and Zhao, Shuai (2019) Accessing Gluon Parton Distributions in Large Momentum Effective Theory. PHYSICAL REVIEW LETTERS, 122 (14): 142001. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
Gluon parton distribution functions (PDFs) in the proton can be calculated directly on Euclidean lattices using large momentum effective theory (LaMET). To realize this goal, one has to find renormalized gluon quasi-PDFs in which power divergences and operator mixing are thoroughly understood. For the unpolarized distribution, we identify four independent quasi-PDF correlators that can be multiplicatively renormalized on the lattice. Similarly, the helicity distribution can be derived from three independent multiplicatively renormalizable quasi-PDFs. We provide a LaMET factorization formula for these renormalized quasi-PDFs from which one can extract the gluon PDFs.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RENORMALIZATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Apr 2020 07:04 |
| Last Modified: | 14 Apr 2020 07:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27181 |
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