32nd International Symposium on Lattice Field Theory (Lattice 2014)

Generating 2+1+1 Flavor Mobius Domain Wall Fermion Configurations

24 Jun 2014, 16:30

20m

428 Pupin

Talk Hadron Spectroscopy and Interactions Hadron spectroscopy and interaction

Speaker

Robert Mawhinney (Columbia University)

Description

The RBC and UKQCD Collaborations are generating 2+1+1 flavor Mobius domain wall fermion configurations with $1/a=3$ and 4 GeV. To achieve good topological tunneling at these weaker couplings, the gauge action is the Wilson action plus a Dislocation Enhancing Determinant (DED) term. The DED term enhances the probability of gauge fields where toplogy-changing dislocations are present, through the inverse of the effect produced by the Dislocation Suppressing Determinant Ratio (DSDR) we have employed in strong coupling domain wall fermion simulations. Tests and consequences of the DED term will be discussed and some preliminary results of measurements on these lattices will be given.

Presentation materials

Slides

talk.pdf