Moduli Stabilization and Supersymmetry Breaking in Effective Theories of Strings

R. Brustein; S. P. de Alwis

doi:10.1103/PhysRevLett.87.231601

Moduli Stabilization and Supersymmetry Breaking in Effective Theories of Strings

R. Brustein and S. P. de Alwis

Phys. Rev. Lett. 87, 231601 – Published 15 November 2001

Abstract

In the “central” region of moduli space of string theories, which is most likely to describe the “real world,” the string coupling is about unity and the volume of compact dimensions is about the string volume. We map this region, assuming that the string coupling and compact volume moduli are chiral superfields of $N = 1$ supergravity in four dimensions, and requiring that the supersymmetry (SUSY) breaking scale is about the weak scale and that the cosmological constant be acceptably small. We find that the SUSY breaking field has a weak scale mass and a flat potential, that the potential is steep in other directions, and that there are additional nearby minima with a large negative cosmological constant.

Received 19 June 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.231601

Authors & Affiliations

R. Brustein^1,* and S. P. de Alwis^2,†

¹Department of Physics, Ben-Gurion University, Beer-Sheva 84105, Israel
²Department of Physics, University of Colorado, Box 390, Boulder, Colorado 80309

^*Email address: ramyb@bgumail.bgu.ac.il
^†Email address: dealwis@pizero.colorado.edu