Neutron Electric Dipole Moment from quark Chromoelectric Dipole Moment

Abstract

The connection between a regularization-independent symmetric momentum substraction (RI-$\tilde{\rm S}$MOM) and the $\overline{\rm MS}$ scheme for the quark chromo EDM operators is discussed. A method for evaluating the neutron EDM from quark chromoEDM is described. A preliminary study of the signal in the matrix element using clover quarks on a highly improved staggered quark (HISQ) ensemble is shown.Comment: 7 pages, Proceedings of the 33rd International Symposium on Lattice Field Theory (LATTICE2015), Kobe, Japan, 14-18 July 201