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Title: First Monte Carlo Global Analysis of Nucleon Transversity with Lattice QCD Constraints

Abstract

We report on the first global QCD analysis of the quark transversity distributions in the nucleon from semi-inclusive deep-inelastic scattering (SIDIS), using a new Monte Carlo method based on nested sampling and constraints on the isovector tensor charge $$g_T$$ from lattice QCD. A simultaneous fit to the available SIDIS Collins asymmetry data is compatible with $$g_T$$ values extracted from a comprehensive reanalysis of existing lattice simulations, in contrast to previous analyses, which found significantly smaller $$g_T$$ values. The contributions to the nucleon tensor charge from $u$ and $d$ quarks are found to be $$\delta u = 0.3(2)$$ and $$\delta d = -0.7(2)$$ at a scale $Q^2 = 2$ GeV$^2$.

Authors:
; ; ; ; ;  [1]
  1. (JAM) Collaboration
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Science Foundation (NSF)
Contributing Org.:
Jefferson Lab Angular Momentum (JAM) Collaboration
OSTI Identifier:
1432748
Alternate Identifier(s):
OSTI ID: 1433087
Report Number(s):
JLAB-THY-17-2574; DOE/OR/23177-4241; arXiv:1710.09858
Journal ID: ISSN 0031-9007; PRLTAO; 152502
Grant/Contract Number:  
AC05-06OR23177; PHY-1623454; PHY-1653405; PHY-1659177
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 120 Journal Issue: 15; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; electron-ion collisions; lattice QCD; nucleon distribution; polarization phenomena; quantum chromodynamics; hybrid Monte Carlo algorithm; lattice field theory

Citation Formats

Lin, H. -W., Melnitchouk, W., Prokudin, A., Sato, N., Shows, H., and Jefferson Lab Angular Momentum. First Monte Carlo Global Analysis of Nucleon Transversity with Lattice QCD Constraints. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.152502.
Lin, H. -W., Melnitchouk, W., Prokudin, A., Sato, N., Shows, H., & Jefferson Lab Angular Momentum. First Monte Carlo Global Analysis of Nucleon Transversity with Lattice QCD Constraints. United States. doi:10.1103/PhysRevLett.120.152502.
Lin, H. -W., Melnitchouk, W., Prokudin, A., Sato, N., Shows, H., and Jefferson Lab Angular Momentum. Wed . "First Monte Carlo Global Analysis of Nucleon Transversity with Lattice QCD Constraints". United States. doi:10.1103/PhysRevLett.120.152502.
@article{osti_1432748,
title = {First Monte Carlo Global Analysis of Nucleon Transversity with Lattice QCD Constraints},
author = {Lin, H. -W. and Melnitchouk, W. and Prokudin, A. and Sato, N. and Shows, H. and Jefferson Lab Angular Momentum},
abstractNote = {We report on the first global QCD analysis of the quark transversity distributions in the nucleon from semi-inclusive deep-inelastic scattering (SIDIS), using a new Monte Carlo method based on nested sampling and constraints on the isovector tensor charge $g_T$ from lattice QCD. A simultaneous fit to the available SIDIS Collins asymmetry data is compatible with $g_T$ values extracted from a comprehensive reanalysis of existing lattice simulations, in contrast to previous analyses, which found significantly smaller $g_T$ values. The contributions to the nucleon tensor charge from $u$ and $d$ quarks are found to be $\delta u = 0.3(2)$ and $\delta d = -0.7(2)$ at a scale $Q^2 = 2$ GeV$^2$.},
doi = {10.1103/PhysRevLett.120.152502},
journal = {Physical Review Letters},
number = 15,
volume = 120,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevLett.120.152502

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Cited by: 10 works
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    Works referencing / citing this record:

    Light-Cone Parton Distribution Functions from Lattice QCD
    text, January 2018

    • Alexandrou, Constantia; Cichy, Krzysztof; Constantinou, Martha
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
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