1205.2212 (Junji Hisano et al.)

QCD Corrections to Neutron Electric Dipole Moment from Dimension-six
Four-Quark Operators    [PDF]

Junji Hisano, Koji Tsumura, Masaki J. S. Yang

In this paper, the renormalization-group equations for the (flavor-conserving) CP-violating interaction are derived up to the dimension six, including all the four-quark operators, at one-loop level. We apply them to the models with the neutral scalar boson or the color-octet scalar boson which have CP-violating Yukawa interactions with quarks, and discuss the neutron electric dipole moment in these models.

View original: http://arxiv.org/abs/1205.2212