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

Physical Review Letters
H-W LinJefferson Lab Angular Momentum (JAM) Collaboration

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 δu=0.3(2) and δd=-0.7(2) at a scale Q^{2}=2  GeV^{2}.

References

Jul 29, 1991·Physical Review Letters·R L Jaffe, X Ji
Jun 4, 2008·Physical Review Letters·T YamazakiUNKNOWN RBC+UKQCD Collaborations
Jul 30, 2011·Physical Review Letters·Alessandro BacchettaMarco Radici
Jul 16, 2013·Physical Review Letters·Xiangdong Ji
Nov 10, 2015·Physical Review Letters·Aurore CourtoySimonetta Liuti
Oct 17, 2017·The European Physical Journal. C, Particles and Fields·S AokiH Wittig
Jan 18, 2018·Physical Review Letters·J J EthierUNKNOWN Jefferson Lab Angular Momentum (JAM) Collaboration

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Citations

Sep 29, 2018·Physical Review Letters·Constantia AlexandrouFernanda Steffens
Oct 27, 2018·Physical Review Letters·P C BarryUNKNOWN Jefferson Lab Angular Momentum (JAM) Collaboration
Apr 13, 2019·Physical Review Letters·Martin HoferichterPeter Stoffer
Mar 4, 2021·The European Physical Journal. A, Hadrons and Nuclei·Martha Constantinou
Jun 11, 2021·Physical Review Letters·William DetmoldUNKNOWN NPLQCD Collaboration

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