# Nuclear Physics & RIKEN Theory Seminar

## "Glue spin from lattice QCD"

#### Presented by Yi-Bo Yang, University of Kentucky

Friday, November 4, 2016, 2:00 pm — Small Seminar Room, Bldg. 510

I will present the result of the glue spin in proton from the lattice QCD simulation, and also the renormalization and matching issues. The lattice calculation is carried out with valence overlap fermions on 2+1 flavor DWF gauge configurations on four lattice spacings and four volumes including an ensemble with physical values for the quark masses. The glue spin $S_G$ in the $\overline{\text{MS}}$ scheme is obtained with the 1-loop perturbative matching. I will also discuss the generic strategy and possible difficulties of calculating the glue helicity on the lattice, from the large momentum effective theory to the lattice simulations.

Hosted by: Heikki Mantysaari

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