# The 34th International Symposium on Lattice Field Theory (Lattice 2016)

24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

## Nucleon Matrix Elements at Physical Point and Cost Comparison

25 Jul 2016, 17:45
20m
Building B2a Room 2077 (Highfield Campus, University of Southampton)

### Speaker

Prof. Keh-Fei Liu (University of Kentucky)

### Description

I shall report on calculations of isovector matrix elements of the nucleon, such as $g_A, g_s$, and $\langle x \rangle$ on the $48^3 \times 96$ lattice with pion mass at 139 MeV and lattice size of 5.5 fm. We employ overlap valence fermion on the 2+1 flavor DWF configurations for the calculation. Also reported will be the strange quark momentum fraction and its magnetic moment from this lattice. A comparison of the cost of such calculations with those of the twisted mass fermion, clover fermion, and domain wall fermion on similar lattices and quark masses will be made for the calculation of the nucleon mass and the three-point functions of both the connected and disconnected insertions.

### Primary author

Prof. Keh-Fei Liu (University of Kentucky)

### Co-author

Dr YIBO Yang (university of Kentucky)

 Slides