arXiv:0704.3119·v2·High Energy Physics — Theory
Stability and hierarchy problems in string inspired braneworld scenarios
Saurya Das (U of Lethbridge)🇨🇦 · Anindya Dey (HRI, Allahabad)🇮🇳 · Soumitra SenGupta (IACS, Kolkata)🇮🇳
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.
Comments: 5 Pages, Revtex. Minor changes. To appear in Europhysics Letters