Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1996-08-29
Nucl.Phys.B482:92-104,1996
Physics
High Energy Physics
High Energy Physics - Theory
16 pages, harvmac big
Scientific paper
10.1016/S0550-3213(96)00547-0
We describe a class of 4d N=1 compactifications of the $SO(32)$ heterotic/type I string theory which are destabilized by nonperturbatively generated superpotentials. In the type I description, the destabilizing superpotential is generated by a one instanton effect or gaugino condensation in a nonperturbative $SU(2)$ gauge group. The dual, heterotic description involves destabilization due to worldsheet instanton or $\it half$ worldsheet instanton effects in the two cases. A genericity argument suggests that a (global) supersymmetry-breaking model of Intriligator and Thomas might be typical in a class of string theory models. Our analysis also suggests that the tensionless strings which arise in the $E_8 \times E_8$ theory in six dimensions when an instanton shrinks to zero size should, in some cases, have supersymmetry breaking dynamics upon further compactification to four dimensions. We provide explicit examples, constructed using F-theory, of the two cases of dynamically generated superpotentials.
Kachru Shamit
Silverstein Eva
No associations
LandOfFree
Singularities, Gauge Dynamics, and Nonperturbative Superpotentials in String Theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Singularities, Gauge Dynamics, and Nonperturbative Superpotentials in String Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Singularities, Gauge Dynamics, and Nonperturbative Superpotentials in String Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-81869