理論セミナー

日時: 2012-07-24 11:00 - 12:00
場所: 研究本館1階会議室1
会議名: RG improvements on the CEDM via CP violating four-Fermi operators
連絡先: 長尾 桂子、knagao-AT-post.kek.jp
講演者: 津村 浩二 氏  (名古屋大学)
講演言語: 英語
URL: http://theory-center.kek.jp/theory/archives/s_c/seminar
アブストラクト: 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.

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