# Brane cosmology in the Horava-Witten heterotic M-Theory on $S^{1}-Z {2}$ - High Energy Physics - Theory

Brane cosmology in the Horava-Witten heterotic M-Theory on $S^{1}-Z {2}$ - High Energy Physics - Theory - Download this document for free, or read online. Document in PDF available to download.

Abstract: We study the radion stability and radion mass in the framework of theHorava-Witten HW heterotic M-Theory on $S^{1}-Z {2}$, and find that theradion is stable and its mass can be of the order of GeV. The gravity islocalized on the visible brane, and the spectrum of the gravitationalKaluza-Klein KK modes is discrete and can have a mass gap of TeV. Thecorrections to the 4D Newtonian potential from the higher order gravitationalKK modes are exponentially suppressed. Applying such a setup to cosmology, wefind the generalized Friedmann-like equations on each of the two orbifoldbranes.

Author: ** Qiang Wu, Yungui Gong, Anzhong Wang**

Source: https://arxiv.org/