Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-11-20
Phys.Rev. D57 (1998) 7521-7528
Physics
High Energy Physics
High Energy Physics - Theory
Latex, 23 pages, 3 figures. References are added and the discussion of the M-theory expansion parameters is enlarged
Scientific paper
10.1103/PhysRevD.57.7521
We provide a simple macroscopic analysis of the four-dimensional effective supergravity of the Ho\v{r}ava-Witten M-theory which is expanded in powers of $\kappa^{2/3}/\rho V^{1/3}$ and $\kappa^{2/3}\rho/V^{2/3}$ where $\kappa^2$, $V$ and $\rho$ denote the eleven-dimensional gravitational coupling, the Calabi-Yau volume and the eleventh length respectively. Possible higher order terms in the K\"ahler potential are identified and matched with the heterotic string corrections. In the context of this M-theory expansion, we analyze the soft supersymmetry-breaking terms under the assumption that supersymmetry is spontaneously broken by the auxiliary components of the bulk moduli superfields. It is examined how the pattern of soft terms changes when one moves from the weakly coupled heterotic string limit to the M-theory limit.
Choi Kiwoon
Kim Hang Bae
Munoz Carlos
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