Huo, Yi-Kai and Su, Yushan and Gui, Long-Cheng and Ji, Xiangdong and Li, Yuan-Yuan and Liu, Yizhuang and Schäfer, Andreas and Schlemmer, Maximilian and Sun, Peng and Wang, Wei and Yang, Yi-Bo and Zhang, Jian-Hui and Zhang, Kuan (2021) Self-renormalization of quasi-light-front correlators on the lattice Lattice Parton Collaboration (LPC). NUCLEAR PHYSICS B, 969: 115443. ISSN 0550-3213, 1873-1562
Full text not available from this repository. (Request a copy)Abstract
In applying large-momentum effective theory, renormalization of the Euclidean correlators in lattice regularization is a challenge due to linear divergences in the self-energy of Wilson lines. Based on lattice QCD matrix elements of the quasi-PDF operator at lattice spacing a = 0.03 fm similar to 0.12 fm with clover and overlap valence quarks on staggered and domain-wall sea, we design a strategy to disentangle the divergent renormalization factors from finite physics matrix elements, which can be matched to a continuum scheme at short distance such as dimensional regularization and minimal subtraction. Our results indicate that the renormalization factors are universal in the hadron state matrix elements. Moreover, the physical matrix elements appear independent of the valence fermion formulations. These conclusions remain valid even with HYP smearing which reduces the statistical errors albeit reducing control of the renormalization procedure. Moreover, we find a large non-perturbative effect in the popular RI/MOM and ratio renormalization scheme, suggesting favor of the hybrid renormalization procedure proposed recently. (C) 2021 The:Author. Published by Elsevier B.V.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NONPERTURBATIVE RENORMALIZATION; HEAVY |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Sep 2022 09:51 |
| Last Modified: | 13 Sep 2022 09:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48045 |
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