| DATE: |
2012-07-24 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 1F, Meeting Room 1 |
| TITLE: |
RG improvements on the CEDM via CP violating four-Fermi operators |
| CONTACT: |
Keiko Nagao, knagao-AT-post.kek.jp |
| SPEAKER: |
Dr.Koji Tsumura (Nagoya University) |
| LANGUAGE: |
English |
| URL: |
http://theory-center.kek.jp/theory/archives/s_c/seminar |
| ABSTRACT: |
The electric dipole moment (EDM) is known to be a good probe of CP violation. In this talk, we focus the CP violating four-Fermi operators, which can mix with the EDM and chromo-EDM (CEDM) operators at one loop level. We show the renormalization-group equations (RGEs) for the (flavor-conserving) CP-violating interaction are derived up to the dimension six. 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. Using the RGEs, the evaluation of the Barr-Zee diagram and the dimension five Weinberg operator is improved. |
