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arXiv · hep-ph/9809467

On fixed points and fermion mass structure from large extra dimensions

Steven Abel·Stephen King
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Abstract

We examine the fixed point behaviour of Yukawa couplings in supersymmetric theories with varying numbers of dimensions. We show that Pendleton-Ross fixed point behaviour is greatly amplified in the MSSM with no extra dimensions and 4 extra $5+\bar{5}$ multiplets or the MSSM with one extra large dimension and 3 extra $5+\bar{5}$ multiplets. We also show that power law running in models with large extra dimensions can give a hierarchical set of quasi-fixed points for the Yukawa couplings in a manner which is similar to the Froggatt-Nielsen mechanism. However, we also point out the limited perturbative domain in models with power law running

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Steven Abel, Stephen King. 1998-09-21. On fixed points and fermion mass structure from large extra dimensions. https://doi.org/10.1103/physrevd.59.095010

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