| Stability and hierarchy problems in string inspired braneworld scenarios (2007) | |||||||||
Abstract | |||||||||
| We generalise the RS braneworld model by taking into account a general stringy bulk containing the scalar dilaton field and the two-form Kalb-Ramond field, apart from gravity. Assuming small fluctuations around a RS background, the back-reacted warp factor is obtained. It is shown that the fine tuning problem in connection with the Higgs mass reappears in a new guise and the effective modular potential fails to stabilise the braneworld.. Comment: 5 Pages, Revtex. Minor changes. To appear in Europhysics Letters | |||||||||
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