Neutrinos in the Simplest Little Higgs Model

Abstract

The simplest little Higgs model based on a SU(3) global symmetry contains a $SU(3{)}_{weak}$ triplet and a singlet per a generation in the lepton sector. A neutral component of the triplet and the singlet turn into a neutral vector-like $SU(2{)}_L$ singlet after electroweak symmetry breaking while the other neutral component of the triplet is the SM neutrino. At tree level, Yukawa couplings of the lepton sector not only allow the neutral vector-like lepton to couple to the SM neutrino, but also give them a Dirac mass. Majorana mass terms for the SM neutrinos and their partners arise at one loops, leading to neutrino flavor mixing in addition to neutrino-heavy neutral lepton mixing.

arXiv comment13 pages, 3 figures, contents changed

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Cited by in corpus (3)

• Little Higgs Models and Their Phenomenology
• Testing neutrino masses in little Higgs models via discovery of doubly charged Higgs at LHC
• A Little Higgs model of neutrino masses