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

Journal Article · · Physical Review Letters

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$^2$.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
Contributing Organization:
Jefferson Lab Angular Momentum (JAM) Collaboration
Grant/Contract Number:
AC05-06OR23177; PHY-1623454; PHY-1653405; PHY-1659177
OSTI ID:
1432748
Alternate ID(s):
OSTI ID: 1433087
Report Number(s):
JLAB-THY-17-2574; DOE/OR/23177-4241; arXiv:1710.09858; PRLTAO; 152502
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Vol. 120 Journal Issue: 15; ISSN 0031-9007
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 53 works
Citation information provided by
Web of Science

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Cited By (4)

Light-Cone Parton Distribution Functions from Lattice QCD text January 2018
A Guide to Light-Cone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results journal June 2019
Systematic uncertainties in parton distribution functions from lattice QCD simulations at the physical point text January 2019
FLAG Review 2019 text January 2019

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