Brane cosmology in the Horava-Witten heterotic M-theory on S{sup 1}/Z{sub 2}

Journal Article · Mon Jun 01 00:00:00 EDT 2009 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2009/06/015· OSTI ID:22273144

Wu, Qiang ^[1]; Gong, Yungui ^[2]; Wang, Anzhong ^[3]

---

1. Department of Physics, Zhejiang University of Technology, Hangzhou 310032 (China)
2. College of Mathematics and Physics, Chongqing University of Posts and Telecommunications, Chongqing 400065 (China)
3. GCAP-CASPER, Physics Department, Baylor University, Waco, TX 76798-7316 (United States)

We study the radion stability and radion mass in the framework of the Horava-Witten (HW) heterotic M-Theory on S{sup 1}/Z{sub 2}, and find that the radion is stable and its mass can be of the order of GeV. The gravity is localized on the visible brane, and the spectrum of the gravitational Kaluza-Klein (KK) modes is discrete and can have a mass gap of TeV. The corrections to the 4D Newtonian potential from the higher order gravitational KK modes are exponentially suppressed. Applying such a setup to cosmology, we find the generalized Friedmann-like equations on each of the two orbifold branes.

• OSTI ID: 22273144
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 06; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BRANES
CORRECTIONS
COSMOLOGY
FIELD EQUATIONS
GEV RANGE
GRAVITATION
KALUZA-KLEIN THEORY
M-THEORY
POTENTIALS
REST MASS
TEV RANGE