Fermion masses and mixings from heterotic orbifold models

Details Fermion masses and mixings from heterotic orbifold models Fermion masses and mixings from heterotic orbifold models

2005-09-23

arxiv.org/abs/hep-ph/0509268v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, 5 tables; talk presented at PASCOS-05, Gyeongju, May 30-Jun 4, 2005; to appear in the proceedings

Scientific paper

10.1063/1.2149724

We search for a possibility of getting realistic fermion mass ratios and mixing angles from renormalizable couplings on the Z_6-I heterotic orbifold with one pair of Higgs doublets. In the quark sector, we find cases with reasonable m_c/m_t, m_s/m_b, and V_{cb}, if we ignore the first family. In the lepton sector, we can fit the charged lepton mass ratios, the neutrino mass squared difference ratio, and the lepton mixing angles, considering all three families.

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