Ji, Xiangdong and Liu, Yizhuang and Schaefer, Andreas and Wang, Wei and Yang, Yi-Bo and Zhang, Jian-Hui and Zhao, Yong (2021) A hybrid renormalization scheme for quasi light-front correlations in large-momentum effective theory. NUCLEAR PHYSICS B, 964: 115311. ISSN 0550-3213, 1873-1562
Full text not available from this repository. (Request a copy)Abstract
In large-momentum effective theory (LaMET), calculating parton physics starts from calculating coordinate-space-z correlation functions h?(z, a, Pz) in a hadron of momentum Pz in lattice QCD. Such correlation functions involve both linear and logarithmic divergences in lattice spacing a, and thus need to be properly renormalized. We introduce a hybrid renormalization procedure to match these lattice correlations to those in the continuum MS scheme, without introducing extra non-perturbative effects at large z. We analyze the effect of O(AQCD) ambiguity in the Wilson line self-energy subtraction involved in this hybrid scheme. To obtain the momentum-space distributions, we recommend to extrapolate the lattice data to the asymptotic z-region using the generic properties of the coordinate space correlations at moderate and large Pz, respectively. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
| Item Type: | Article |
|---|---|
| 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 08:38 |
| Last Modified: | 13 Sep 2022 08:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47972 |
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