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Title: Nucleon isovector tensor charge from lattice QCD using chiral fermions

Abstract

In this work we present the isovector flavor combination for the nucleon tensor charge extracted from lattice QCD simulations using overlap fermions on Nf = 2 + 1 domain-wall configurations. The pion mass dependence is studied using six valence quark masses, each reproducing a value for the pion mass in the valence sector between 147 and 330 MeV. We investigate and eliminate systematic uncertainties due to contamination by excited states, by employing several values for the source-sink separation that span from 1 to 1.6 fm. We apply a chiral extrapolation in the valence sector using a quadratic and a logarithmic term to fit the pion mass dependence, which describes well the lattice data. The lattice matrix element is renormalized nonperturbatively, and the final result is gT = 1.096 (30) in the MS¯ scheme at a renormalization scale of 2 GeV.

Authors:
; ; ORCiD logo; ; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; χQCD Collaboration"" class="biblio-detail-author-link">
Publication Date:
Research Org.:
Univ. of Kentucky, Lexington, KY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); National Science Foundation of China; Chinese Academy of Sciences
Contributing Org.:
χQCD Collaboration
OSTI Identifier:
1617704
Alternate Identifier(s):
OSTI ID: 1736246
Report Number(s):
DOE-UKY-13065-2002.06699
Journal ID: ISSN 2470-0010; PRVDAQ; 094501
Grant/Contract Number:  
SC0013065; AC05-00OR22725; PHY-1714407; 11575197; XDC01040100; ACI-1053575
Resource Type:
Published Article
Journal Name:
Physical Review. D.
Additional Journal Information:
Journal Name: Physical Review. D. Journal Volume: 101 Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Lattice QCD

Citation Formats

Horkel, Derek, Bi, Yujiang, Constantinou, Martha, Draper, Terrence, Liang, Jian, Liu, Keh-Fei, Liu, Zhaofeng, Yang, Yi-Bo, and χQCD Collaboration. Nucleon isovector tensor charge from lattice QCD using chiral fermions. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.101.094501.
Horkel, Derek, Bi, Yujiang, Constantinou, Martha, Draper, Terrence, Liang, Jian, Liu, Keh-Fei, Liu, Zhaofeng, Yang, Yi-Bo, & χQCD Collaboration. Nucleon isovector tensor charge from lattice QCD using chiral fermions. United States. https://doi.org/10.1103/PhysRevD.101.094501
Horkel, Derek, Bi, Yujiang, Constantinou, Martha, Draper, Terrence, Liang, Jian, Liu, Keh-Fei, Liu, Zhaofeng, Yang, Yi-Bo, and χQCD Collaboration. Thu . "Nucleon isovector tensor charge from lattice QCD using chiral fermions". United States. https://doi.org/10.1103/PhysRevD.101.094501.
@article{osti_1617704,
title = {Nucleon isovector tensor charge from lattice QCD using chiral fermions},
author = {Horkel, Derek and Bi, Yujiang and Constantinou, Martha and Draper, Terrence and Liang, Jian and Liu, Keh-Fei and Liu, Zhaofeng and Yang, Yi-Bo and χQCD Collaboration},
abstractNote = {In this work we present the isovector flavor combination for the nucleon tensor charge extracted from lattice QCD simulations using overlap fermions on Nf = 2 + 1 domain-wall configurations. The pion mass dependence is studied using six valence quark masses, each reproducing a value for the pion mass in the valence sector between 147 and 330 MeV. We investigate and eliminate systematic uncertainties due to contamination by excited states, by employing several values for the source-sink separation that span from 1 to 1.6 fm. We apply a chiral extrapolation in the valence sector using a quadratic and a logarithmic term to fit the pion mass dependence, which describes well the lattice data. The lattice matrix element is renormalized nonperturbatively, and the final result is gT = 1.096 (30) in the MS¯ scheme at a renormalization scale of 2 GeV.},
doi = {10.1103/PhysRevD.101.094501},
journal = {Physical Review. D.},
number = 9,
volume = 101,
place = {United States},
year = {Thu May 07 00:00:00 EDT 2020},
month = {Thu May 07 00:00:00 EDT 2020}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.101.094501

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Cited by: 8 works
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