Lepton dipole moments in supersymmetric low-scale seesaw models

Ilakovac, Amon and Pilaftsis, Apostolos and Popov, Luka (2014) Lepton dipole moments in supersymmetric low-scale seesaw models. Physical Review D, 89 (1). pp. 15001-9. ISSN 1550-7998

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We study the anomalous magnetic and electric dipole moments of charged leptons in supersymmetric low-scale seesaw models with right-handed neutrino superfields. We consider a minimally extended framework of minimal supergravity, by assuming that CP violation originates from complex soft SUSY-breaking bilinear and trilinear couplings associated with the right-handed sneutrino sector. We present numerical estimates of the muon anomalous magnetic moment and the electron electric dipole moment, as functions of key model parameters, such as the Majorana mass scale m_N and tan β. In particular, we find that the contributions of the singlet heavy neutrinos and sneutrinos to the electron electric dipole moment are naturally small in this model, of order 10^−27 −  10^−28 ecm, and can be probed in present and future experiments.

Item Type: Article
Keywords: lepton, dipole moments, seesaw, supersymmetry
Date: January 2014
Subjects: NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Additional Information: Copyright (2014) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-0982930-1016
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 08 Jul 2014 08:17
Last Modified: 08 Jul 2014 08:17
URI: http://digre.pmf.unizg.hr/id/eprint/2391

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