63 research outputs found
Non-degenerate light quark masses from 2+1f lattice QCD+QED
We report on a calculation of the effects of isospin breaking in Lattice
QCD+QED. This involves using Chiral Perturbation Theory with Electromagnetic
corrections to find the renormalized, non-degenerate, light quark masses. The
calculations are carried out on QCD ensembles generated by the RBC and UKQCD
collaborations using Domain Wall Fermions and the Iwasaki and Iwasaki+DSDR
Gauge Actions with unitary pion masses down to 170 MeV. Non-compact QED is
treated in the quenched approximation. The simulations use a lattice
size with GeV (Iwasaki) and 1.37(1) (Iwasaki+DSDR). This
builds on previous work from the RBC/UKQCD collaboration with lattice spacing
GeV.Comment: Presented at the 31st International Symposium on Lattice Field Theory
(Lattice 2013), 29 July - 3 August 2013, Mainz, German
- …