Yukawa matrix for the neutrino and Lepton Flavour Violation

S. Kanemura, K. Matsuda, T. Ota, T. Shindou, E. Takasugi, K. Tsumura

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We estimate the magnitude of Lepton Flavour Violation (LFV) from the phase of the neutrino Yukawa matrix. In the minimal supersymmetric standard model with right-handed neutrinos, the LFV processes li → l can appear through the slepton mixing, which comes from the renormalization group effect on the right-handed neutrino Yukawa interaction between the Grand Unified Theory scale and the heavy right-handed neutrino mass scale. Two types of phases exist in the neutrino Yukawa matrix. One is the Majorana phase, which can change the magnitude of the LFV branching ratios by a few factor. The other phases relate for the size of the Yukawa hierarchy and its phase effect can change the LFV branching ratios by several orders of magnitude.

Original languageEnglish
Pages (from-to)360-362
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
Publication statusPublished - Dec 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics


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