23–28 Jun 2014
Columbia University
US/Eastern timezone

Quark Spin in the Nucleon with Overlap Fermion

24 Jun 2014, 15:35
20m
301 Pupin

301 Pupin

Talk Hadron Structure Hadron Structure

Speaker

Dr Ming Gong (Institute of High Energy Physics, Chinese Academy of Sciences)

Description

The disconnected insertion part of the quark contributions to the nucleon spin are calculated with overlap fermion on DWF configurations. This work is done by calculating the disconnected three point correlation functions through the anomalous Ward identity. The quark loop of the pseudoscalar density is calculated with low-mode average and grid-noise estimate for the high modes. The overlap operator is used for the topological charge density.

Primary authors

Prof. Keh-Fei Liu (University of kentucky) Dr Ming Gong (Institute of High Energy Physics, Chinese Academy of Sciences) Dr yibo yang (University of Kentucky)

Presentation materials