On Fermion Mass Hirerachies in MSSM-like Quiver Models with Stringy Corrections

Details On Fermion Mass Hirerachies in MSSM-like Quiver Models with Stringy Corrections On Fermion Mass Hirerachies in MSSM-like Quiver Models with Stringy Corrections

2011-07-05

arxiv.org/abs/1107.0872v1

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, Latex, 2 figures. Accepted for publication in Central European Journal of Physics

Scientific paper

Using instanton effects, we discuss the problem of fermion mass hierarchies in an MSSM-like Type IIA orientifolded model with U(3)xSp(1)xU(1)xU(1) gauge symmetry obtained from intersecting D6-branes. In the corresponding four-stack quiver, the different scales of the generated superpotential couplings offer a partial solution to fermion mass hierarchies. Using the known data with neutrino masses m_{v_{\tau}}\lesssim 2 eV, we give the magnitudes of the relevant scales.

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