Glue spin Sg in the longitudinally polarized nucleon

Raza Sabbir Sufian, Michael J. Glatzmaier, Yi Bo Yang, Keh Fei Liu, Mingyang Sun

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


We present a lattice QCD calculation of the glue spin SG in the nucleon for the first time. It was recently shown that the first moment of the glue helicity distribution could be obtained through the cross-product of the the electric field E and the physical gauge field Aphys with the non-Abelian Coulomb gauge condition, i.e. ld 3 xE(x) x Aphys (x) in the infinite momentum frame. We use the gauge field tensor from the overlap Dirac operator to check the frame dependence and calculate glue spin with several momenta. The calculation is carried out with valence overlap fermion on 2+1 flavor DWF gauge configurations on the 243 × 64 lattice with a-1 = 1.77 GeV with the light sea quark mass corresponding to a pion mass of 330 MeV.

Original languageEnglish
Article number166
JournalProceedings of Science
VolumePart F130500
StatePublished - 2014
Event32nd International Symposium on Lattice Field Theory, LATTICE 2014 - New York, United States
Duration: Jun 23 2014Jun 28 2014

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ASJC Scopus subject areas

  • General


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