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Title: Nonperturbative renormalization of staple-shaped Wilson line operators in lattice QCD

Abstract

Quark bilinear operators with staple-shaped Wilson lines are used to study transverse-momentumdependent parton distribution functions (TMDPDFs) from lattice quantum chromodynamics (QCD). Here, the renormalization factors for the isovector operators, including all mixings between operators with different Dirac structures, are computed nonperturbatively in the regularization independent momentum subtraction scheme for the first time. This study is undertaken in quenched QCD with three different lattice spacings. With Wilson flow applied to the gauge fields in the calculations, the operator mixing pattern due to chiral symmetry breaking with the lattice regularization is found to be significantly different from that predicted by one-loop lattice perturbation theory calculations. These results constitute a critical step towards the systematic extraction of TMDPDFs from lattice QCD

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
OSTI Identifier:
1632909
Alternate Identifier(s):
OSTI ID: 1617688; OSTI ID: 1635373
Report Number(s):
BNL-215915-2020-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 074505
Grant/Contract Number:  
SC0011090; SC0012704; AC02-05CH11231; ACI-1548562
Resource Type:
Published Article
Journal Name:
Physical Review. D.
Additional Journal Information:
Journal Name: Physical Review. D. Journal Volume: 101 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; lattice QCD; nonperturbative effects in field theory; quantum chromodynamics; renormalization

Citation Formats

Shanahan, Phiala, Wagman, Michael L., and Zhao, Yong. Nonperturbative renormalization of staple-shaped Wilson line operators in lattice QCD. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.101.074505.
Shanahan, Phiala, Wagman, Michael L., & Zhao, Yong. Nonperturbative renormalization of staple-shaped Wilson line operators in lattice QCD. United States. https://doi.org/10.1103/PhysRevD.101.074505
Shanahan, Phiala, Wagman, Michael L., and Zhao, Yong. Tue . "Nonperturbative renormalization of staple-shaped Wilson line operators in lattice QCD". United States. https://doi.org/10.1103/PhysRevD.101.074505.
@article{osti_1632909,
title = {Nonperturbative renormalization of staple-shaped Wilson line operators in lattice QCD},
author = {Shanahan, Phiala and Wagman, Michael L. and Zhao, Yong},
abstractNote = {Quark bilinear operators with staple-shaped Wilson lines are used to study transverse-momentumdependent parton distribution functions (TMDPDFs) from lattice quantum chromodynamics (QCD). Here, the renormalization factors for the isovector operators, including all mixings between operators with different Dirac structures, are computed nonperturbatively in the regularization independent momentum subtraction scheme for the first time. This study is undertaken in quenched QCD with three different lattice spacings. With Wilson flow applied to the gauge fields in the calculations, the operator mixing pattern due to chiral symmetry breaking with the lattice regularization is found to be significantly different from that predicted by one-loop lattice perturbation theory calculations. These results constitute a critical step towards the systematic extraction of TMDPDFs from lattice QCD},
doi = {10.1103/PhysRevD.101.074505},
journal = {Physical Review. D.},
number = 7,
volume = 101,
place = {United States},
year = {Tue Apr 07 00:00:00 EDT 2020},
month = {Tue Apr 07 00:00:00 EDT 2020}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.101.074505

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Cited by: 28 works
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