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Higgs-graviscalar mixing in type I string theory

I. Antoniadis·R. Sturani
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Abstract

We investigate the possibility of mixing between open and closed string excitations in D-brane models with the fundamental string scale at the TeV. The open string modes describe the Standard Model Higgs, while closed strings describe graviscalars living in the bulk. This provides a string setup for computing the Higgs-graviscalar mixing, that leads to a phenomenologically interesting invisible width of the Higgs in low scale quantum gravity models, as suggested previously by Giudice, Rattazzi and Wells.

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I. Antoniadis, R. Sturani. 2002-11-05. Higgs-graviscalar mixing in type I string theory. https://doi.org/10.1016/s0550-3213(02)00214-6

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