Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-01-22
Phys.Lett. B507 (2001) 287-295
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages. Latex. References added. Many minor changes. Correct analysis of Kaluza-Klein excitations along compact brane direct
Scientific paper
10.1016/S0370-2693(01)00439-7
In the D = (n + m + 1) dimensional brane world scenario with m compact dimensions, the radion modulus can be stabilised by a massive bulk m-form antisymmetric field. We analyse some of the phenomenological aspects of this scenario. We find that the radion mass is smaller than the TeV scale, but larger than that in the case where the radion modulus is stabilised by a bulk scalar field. From the macroscopic n dimensional spacetime point of view, the m-form field mimics a set of p-form fields. We analyse the mass spectrum of these fields. The lowest mass is \stackrel{>}{_\sim} TeV whereas, for any bulk or brane field, the excitations in the compact space have Planckian mass and are likely to reintroduce the hierarchy problem. Also, we analyse the couplings of the m-form field to the matter fields living on a brane. The present results are applicable to more general cases also.
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