Flavor diagonal tensor charges of the nucleon from ( )-flavor lattice QCD
Abstract
Here, we present state-of-the-art results for the matrix elements of flavor diagonal tensor operators within the nucleon state. The calculation of the dominant connected contribution is done using 11 ensembles of gauge configurations generated by the MILC Collaboration using the highly improved staggered quark action with 2+1+1 dynamical flavors. The calculation of the disconnected contributions is done using seven (six) ensembles for the strange (light) quarks. These high-statistics simulations allowed us to address various systematic uncertainties. A simultaneous fit in the lattice spacing and the light-quark mass is used to extract the tensor charges in the continuum limit and at M π = 135 MeV. Results for the proton in the ¯¯MS scheme at 2 GeV are g u T = 0.784(28)(10), g d T = –0.204(11)(10) and g s T = –0.0027(16). Implications of these results for constraining the quark electric dipole moments and their contributions to the neutron electric dipole moment are discussed.
- Authors:
-
[1];
[1];
[1];
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Michigan State Univ., East Lansing, MI (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory, Oak Ridge Leadership Computing Facility (OLCF); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Org.:
- PNDME Collaboration
- OSTI Identifier:
- 1481814
- Alternate Identifier(s):
- OSTI ID: 1482954; OSTI ID: 1484890
- Report Number(s):
- LA-UR-18-28007; BNL-209650-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
- Grant/Contract Number:
- 89233218CNA000001; AC02-05CH11231; AC05-00OR22725; AC52-06NA25396; SC0012704
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 98; 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; Atomic, Nuclear and Particle Physics; Tensor charges, Lattice QCD; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; lattice; QCD; nucleon; mass; quark; flavors; tensor; algorithm; matrix; operators
Citation Formats
Gupta, Rajan, Yoon, Boram, Bhattacharya, Tanmoy, Cirigliano, Vincenzo, Jang, Yong -Chull, and Lin, Huey -Wen. Flavor diagonal tensor charges of the nucleon from (2+1+1)-flavor lattice QCD. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.98.091501.
Gupta, Rajan, Yoon, Boram, Bhattacharya, Tanmoy, Cirigliano, Vincenzo, Jang, Yong -Chull, & Lin, Huey -Wen. Flavor diagonal tensor charges of the nucleon from (2+1+1)-flavor lattice QCD. United States. doi:10.1103/PhysRevD.98.091501.
Gupta, Rajan, Yoon, Boram, Bhattacharya, Tanmoy, Cirigliano, Vincenzo, Jang, Yong -Chull, and Lin, Huey -Wen. Mon .
"Flavor diagonal tensor charges of the nucleon from (2+1+1)-flavor lattice QCD". United States. doi:10.1103/PhysRevD.98.091501.
@article{osti_1481814,
title = {Flavor diagonal tensor charges of the nucleon from (2+1+1)-flavor lattice QCD},
author = {Gupta, Rajan and Yoon, Boram and Bhattacharya, Tanmoy and Cirigliano, Vincenzo and Jang, Yong -Chull and Lin, Huey -Wen},
abstractNote = {Here, we present state-of-the-art results for the matrix elements of flavor diagonal tensor operators within the nucleon state. The calculation of the dominant connected contribution is done using 11 ensembles of gauge configurations generated by the MILC Collaboration using the highly improved staggered quark action with 2+1+1 dynamical flavors. The calculation of the disconnected contributions is done using seven (six) ensembles for the strange (light) quarks. These high-statistics simulations allowed us to address various systematic uncertainties. A simultaneous fit in the lattice spacing and the light-quark mass is used to extract the tensor charges in the continuum limit and at Mπ = 135 MeV. Results for the proton in the ¯¯MS scheme at 2 GeV are guT = 0.784(28)(10), gdT = –0.204(11)(10) and gsT = –0.0027(16). Implications of these results for constraining the quark electric dipole moments and their contributions to the neutron electric dipole moment are discussed.},
doi = {10.1103/PhysRevD.98.091501},
journal = {Physical Review D},
number = 9,
volume = 98,
place = {United States},
year = {2018},
month = {11}
}
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DOI: 10.1103/PhysRevD.98.091501
DOI: 10.1103/PhysRevD.98.091501
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Cited by: 11 works
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Figures / Tables:
FIG. 1: The data for the unrenormalized disconnected contributions of the light $g^{l,disc}_T$ (top two rows) and strange $g^{ s;disc}_T$ (bottom two rows) quarks. The ground state estimate is given by the solid black line within the gray band. It is obtained as the average over data at multiple $t$more »
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