Gravity Localization and Mass Hierarchy on Pure Geometric Thin Branes
Year: 2011
Type: preprint
Abstract: We consider a simple toy model with flat thin branes embedded in a 5- dimensional Weyl integrable manifold, where the Weyl scalar provides the material to constitute the brane configurations. As we work with an S 1 /Z2 orbifold extra dimension, thin brane solutions which have two flat branes located at the two boundaries of the orb- ifold are found. Especially, we focus our attention on one of the solutions, whose warp factor is decreasing along the extra dimension like RS1 model, while its massless graviton is localized on the brane located at the boundary zb but not at the origin one. Further, the mass hierarchy problem is discussed based on this solution. Interestingly, we find that the spacing of mass spectrum in this scenario is very tiny, but the light gravitons cannot be seen individually in colliders for their weak enough interaction with matter on the visible brane.
Source: arXiv (Cornell University)
Authors: Ke Yang, Yu-Xiao Liu, Yuan Zhong, Shao-Wen Wei
Institution: Lanzhou University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W140840984