Cosmological constant, brane tension and large hierarchy in a generalized Randall-Sundrum braneworld scenario
We consider a generalized Randall Sundrum (RS) brane world scenario with a cosmological constant induced on the visible brane. We show that for < 0, resolution of the hierarchy problem requires an upper bound on the magnitude of . The corresponding tension on the visible brane can be positive or negative. On the other hand, there is no such bound for > 0. However, in this case, the resolution of the hierarchy problem along with the tuning of the value of the cosmological constant to its observed value closed to +10−124 (in Planck units) naturally lead to the tuning of the modulus to a small value of inverse Planck length as estimated in the original RS scenario.
Sherpa Romeo green journal. Open access article. Creative Commons Attribution License (CC BY 4.0) applies.
Randall-Sundrum , Cosmological constant , RS brane world scenario , Field theories in higher dimensions , P-branes
Das, S., Maity, D., & SenGupta, S. (2008). Cosmological constant, brane tension and large hierarchy in a generalized Randall-Sundrum braneworld scenario. Journal of High Energy Physics, 2016(05), 042. https://doi.org.10.1088/1126-6708/2008/05/042