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Title: Scalar, Axial, and Tensor Interactions of Light Nuclei from Lattice QCD

Complete flavor decompositions of the matrix elements of the scalar, axial, and tensor currents in the proton, deuteron, diproton, and 3He at SU(3)-symmetric values of the quark masses corresponding to a pion mass m π~806 MeV are determined using lattice quantum chromodynamics. At the physical quark masses, the scalar interactions constrain mean-field models of nuclei and the low-energy interactions of nuclei with potential dark matter candidates. The axial and tensor interactions of nuclei constrain their spin content, integrated transversity, and the quark contributions to their electric dipole moments. External fields are used to directly access the quark-line connected matrix elements of quark bilinear operators, and a combination of stochastic estimation techniques is used to determine the disconnected sea-quark contributions. The calculated matrix elements differ from, and are typically smaller than, naive single-nucleon estimates. Given the particularly large, O(10%), size of nuclear effects in the scalar matrix elements, contributions from correlated multinucleon effects should be quantified in the analysis of dark matter direct-detection experiments using nuclear targets.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [3] ;  [8]
  1. Univ. of Washington, Seattle, WA (United States). Inst. for Nuclear Theory
  2. Univ. of Maryland, College Park, MD (United States). Dept. of Physics; Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics; Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Sciences Division; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
  5. College of William and Mary, Williamsburg, VA (United States). Dept. of Physics; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  6. Univ. of Washington, Seattle, WA (United States). Inst. for Nuclear Theory; Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics
  7. College of William and Mary, Williamsburg, VA (United States). Dept. of Physics; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics
  8. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-THY-17-2607; DOE/OR/23177-4295; arXiv:1712.03221
Journal ID: ISSN 0031-9007; TRN: US1802364
Grant/Contract Number:
AC05-06OR23177; AC02-05CH11231; AC05-00OR22725; AC52-07NA27344; FG02-04ER41302; FG02-00ER41132; SC0010337; SC0010495; SC0011090; PHY11-25915; PHY-1626177; ST/P000681/1
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 15; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); College of William and Mary, Williamsburg, VA (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Washington, Seattle, WA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF); Science and Technology Facilities Council (STFC) (United Kingdom)
Contributing Orgs:
NPLQCD Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; lattice QCD; lattice field theory; lattice gauge theory; quantum chromodynamics
OSTI Identifier:
1433028
Alternate Identifier(s):
OSTI ID: 1433819

Chang, Emmanuel, Davoudi, Zohreh, Detmold, William, Gambhir, Arjun S., Orginos, Kostas, Savage, Martin J., Shanahan, Phiala E., Wagman, Michael L., and Winter, Frank. Scalar, Axial, and Tensor Interactions of Light Nuclei from Lattice QCD. United States: N. p., Web. doi:10.1103/PhysRevLett.120.152002.
Chang, Emmanuel, Davoudi, Zohreh, Detmold, William, Gambhir, Arjun S., Orginos, Kostas, Savage, Martin J., Shanahan, Phiala E., Wagman, Michael L., & Winter, Frank. Scalar, Axial, and Tensor Interactions of Light Nuclei from Lattice QCD. United States. doi:10.1103/PhysRevLett.120.152002.
Chang, Emmanuel, Davoudi, Zohreh, Detmold, William, Gambhir, Arjun S., Orginos, Kostas, Savage, Martin J., Shanahan, Phiala E., Wagman, Michael L., and Winter, Frank. 2018. "Scalar, Axial, and Tensor Interactions of Light Nuclei from Lattice QCD". United States. doi:10.1103/PhysRevLett.120.152002.
@article{osti_1433028,
title = {Scalar, Axial, and Tensor Interactions of Light Nuclei from Lattice QCD},
author = {Chang, Emmanuel and Davoudi, Zohreh and Detmold, William and Gambhir, Arjun S. and Orginos, Kostas and Savage, Martin J. and Shanahan, Phiala E. and Wagman, Michael L. and Winter, Frank},
abstractNote = {Complete flavor decompositions of the matrix elements of the scalar, axial, and tensor currents in the proton, deuteron, diproton, and 3He at SU(3)-symmetric values of the quark masses corresponding to a pion mass mπ~806 MeV are determined using lattice quantum chromodynamics. At the physical quark masses, the scalar interactions constrain mean-field models of nuclei and the low-energy interactions of nuclei with potential dark matter candidates. The axial and tensor interactions of nuclei constrain their spin content, integrated transversity, and the quark contributions to their electric dipole moments. External fields are used to directly access the quark-line connected matrix elements of quark bilinear operators, and a combination of stochastic estimation techniques is used to determine the disconnected sea-quark contributions. The calculated matrix elements differ from, and are typically smaller than, naive single-nucleon estimates. Given the particularly large, O(10%), size of nuclear effects in the scalar matrix elements, contributions from correlated multinucleon effects should be quantified in the analysis of dark matter direct-detection experiments using nuclear targets.},
doi = {10.1103/PhysRevLett.120.152002},
journal = {Physical Review Letters},
number = 15,
volume = 120,
place = {United States},
year = {2018},
month = {4}
}