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arXiv · 0711.0805

Fermion mass splitting, stability and naturalness problems in warped braneworld models

Soumitra SenGupta
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Abstract

We generalize the Randall Sundrum warped braneworld model in six and higher dimension and propose a resolution to the mass hierarchy among the standard model fermions. The fine tuning problem in connection with the scalar mass however is shown to reappear in a new guise in five dimensional warped model when the two form antisymmetric tensor fields, a massless string mode, propagates in the bulk. Finally the issue of modulus stabilization is re-examined in presence of a bulk scalar by considering it's back-reaction on the background geometry. The role of higher derivative term of the bulk scalar is shown to be crucial to achieve modulus stabilization.

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Soumitra SenGupta. 2007-11-06. Fermion mass splitting, stability and naturalness problems in warped braneworld models. https://doi.org/10.1063/1.2803810

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