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# 36th Annual International Symposium on Lattice Field Theory

22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

## Lattice calculation of neutron electric dipole moment with overlap fermions

Jul 24, 2018, 6:45 PM
2h
Lincoln (Kellogg Hotel and Conference Center)

### Lincoln

#### Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824

### Speaker

Jian Liang (University of Kentucky)

### Description

We report our calculation of the neutron electric dipole moment of the contribution from the $\theta$ term with overlap fermions on the 2+1-flavor RBC/UKQCD domain wall lattices 24I and 32ID. For the 24I lattice the size is 2.65 fm and the pion mass is 337 MeV and for the 32ID lattice the size is 4.58 fm and the pion mass is 171 MeV. In order to solve the large-volume problem, the cluster-decomposition error reduction (CDER) technique is utilized to improve the signal-to-noise ratio especially for the lattice with larger volume.

### Primary author

Jian Liang (University of Kentucky)

### Co-authors

Prof. Keh-Fei Liu (University of Kentucky) Prof. Terrence Draper (University of Kentucky) Dr Yi-bo Yang (Michigan state university)

 Poster