We report the progress on the lattice QCD calculation of the glue spin contribution to proton spin. This calculation is carried out with valence overlap fermion on 2+1 flavor DWF gauge configurations at two lattice spacings with the momentum of the frame in the kinematic range 0 ≤ p2 ≤ 2 GeV2 . A mild frame dependence is observed. The matching and mixing with largemomentum effective field theory are in progress. The unrenormalized result at p2 = 4 GeV2 with O(a2) correction gives SG = 0.13(3).
|Journal||Proceedings of Science|
|State||Published - 2015|
|Event||33rd International Symposium on Lattice Field Theory, LATTICE 2015 - Kobe, Japan|
Duration: Jul 14 2015 → Jul 18 2015
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