| Issue |
EPL
Volume 83, Number 5, September 2008
|
|
|---|---|---|
| Article Number | 51002 | |
| Number of page(s) | 4 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/83/51002 | |
| Published online | 01 September 2008 | |
Stability and hierarchy problems in string-inspired braneworld scenarios
1
Department of Physics, University of Lethbridge - 4401 University Drive, Lethbridge Alberta, T1K 3M4, Canada
2
The University of Texas at Austin, Theory Group - 1 University Station, C1608 Austin, TX 78712-0269, USA
3
Department of Theoretical Physics, Indian Association for the Cultivation of Science - Calcutta, 700032, India
Corresponding authors: saurya.das@uleth.ca anindya@physics.utexas.edu tpssg@iacs.res.in
Received:
3
April
2008
Accepted:
15
July
2008
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 backreacted 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.
PACS: 11.25.-w – Strings and branes / 04.60.-m – Quantum gravity
© EPLA, 2008
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