2003/05/31 by Masato Senami, Katsuji Yamamoto · 12 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Electron #Higgs boson #Leptogenesis #Lepton #Mass matrix #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #hep-ph
paper · pdf · open access · doi:10.1103/physrevd.69.035004
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 69(3) (American Physical Society) · 8 pages, 1 figure. refined the estimations on the charged lepton decays
arxiv created 2003/10/23 · openalex publication_date 2004/02/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Lepton flavor violating processes such as \stackrel\ensuremath→\ensuremathμ3e and \stackrel\ensuremath→\ensuremathμe\ensuremathγ are investigated with a supersymmetric Higgs triplet pair \ensuremathΔ and \ensuremathΔ in light of neutrino masses and experimentally verifiable leptogenesis. The Higgs triplet mass M_\ensuremathΔ is expected to be in the range of 1--100TeV. The branching ratios of these charged lepton decays are evaluated in terms of M_\ensuremathΔ and the coupling fL\ensuremathΔL of the Higgs triplet \ensuremathΔ with lepton doublet pairs LL, which is proportional to the neutrino mass matrix. They may be reached in future collider experiments. In particular, the \stackrel\ensuremath→\ensuremathμ3e decay would be observed indicating the existence of Higgs triplets with M_\ensuremathΔ\ensuremath∼1--100TeV for |f|\ensuremath∼0.1--1, while the \stackrel\ensuremath→\ensuremathμe\ensuremathγ decay can be significant irrespective of M_\ensuremathΔ in the supersymmetric model due to the flavor violation in the slepton mass matrices induced by the renormalization effects.