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arXiv 1107.0872hep-th
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具有Stringy修正的类MSSM箭图模型中的费米子质量Herraches

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

A. Belhaj, M. Benhamza, S. E. Ennadifi, S. Nassiri, E. H. Saidi

摘要:

利用瞬子效应,我们讨论了具有U(3)xSp(1)xU(1)xU(1)规范对称性的IIA类MSSM定向折叠模型中的费米子质量级数问题.在相应的四层叠加中,超势耦合的不同尺度提供了费米子质量等级的部分解。利用中微子质量为m_{v_τ} \lesssim 2 eV的已知数据,我们给出了相关标度的大小.

英文摘要:

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_τ}\lesssim 2 eV, we give the magnitudes of the relevant scales.

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