| Article | |
| Report number | hep-ph/0111324 ; CERN-TH-2001-311 ; KEK-TH-791 ; DPNU-01-32 ; CERN-TH-2001-311 ; KEK-TH-791 ; DPNU-2001-32 |
| Title | Lepton electric dipole moments in non-degenerate supersymmetric Seesaw models |
| Related title | EDMS |
| Author(s) | Ellis, John R. (CERN) ; Hisano, Junji (KEK, Tsukuba) ; Raidal, Martti (CERN ; NICPB, Tallinn) ; Shimizu, Yasuhiro (Nagoya U.) |
| Affiliation | (KEK. Tsukuba) ; (Nagoya Univ.) ; (Nat. Inst. Chem. Phys. Biophys. Tallin) |
| Publication | 2002 |
| Imprint | 26 Nov 2001 |
| Number of pages | 17 |
| Note | 16page. Some references are added |
| In: | Phys. Lett. B 528 (2002) 86-96 |
| DOI | 10.1016/S0370-2693(02)01197-8 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | In the context of supersymmetric seesaw models of neutrino masses with non-degenerate heavy neutrinos, we show that Dirac Yukawa interactions N^c_i (Y_nu)_{ij} L_j H_2 induce large threshold corrections to the slepton soft masses via renormalization. While still yielding rates for lepton-flavour-violating processes below the experimental bounds, these contributions may increase the muon and electron electric dipole moments d_mu and d_e by several orders of magnitude. In the leading logarithmic approximation, this is due to three additional physical phases in Y_nu, one of which also contributes to leptogenesis. The naive relation d_mu/d_e\approx -m_mu/m_e is violated strongly in the case of successful phenomenological textures for Y_nu, and the values of d_mu and/or d_e may be within the range of interest for the future experiments. |
| Copyright/License | Elsevier Science B.V. |
Corresponding record in: Inspire
Email contact: junji.hisano@kek.jp
Element opprettet 2001-11-27, sist endret 2023-03-14