Speaker
Jun-Sik Yoo
(Los Alamos National Laboratory)
Description
We share results from our lattice QCD study of the contribution of the isovector quark chromo-electric dipole moment (qcEDM) operator to the nucleon electric dipole moments (nEDM). The calculation was done on four 2+1+1-flavor of highly improved staggered quark (HISQ) ensembles employing Wilson-clover quarks to construct correlation functions. We employ the non-singlet axial Ward identity including corrections up to O(a) to show how to control the power-divergent mixing of the isovector qcEDM operator with the lower dimensional pseudoscalar operator. Preliminary results for the nEDM due to qcEDM are presented after conversion to the MSbar scheme at the leading-log order.
Primary authors
Dr
Boram Yoon
(NVIDIA)
Jun-Sik Yoo
(Los Alamos National Laboratory)
Dr
Rajan Gupta
(LANL)
Dr
Tanmoy Bhattacharya
(LANL)
Vincenzo Cirigliano
(Los Alamos National Lab)
emanuele mereghetti
(LANL)
