Exponentially Small Couplings and the Hierarchy Problem

Details Exponentially Small Couplings and the Hierarchy Problem Exponentially Small Couplings and the Hierarchy Problem

1997-06-05

arxiv.org/abs/hep-th/9706035v1

Phys.Lett. B413 (1997) 331-335

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, latex, 2 figures

Scientific paper

10.1016/S0370-2693(97)01119-2

We propose a stringy mechanism whereby a large hierarchy between symmetry breaking scales is generated. This mechanism is based upon the existence of a fifth dimension compactified on a segment. We focus on a simple supersymmetric model with one massless Higgs field in the 3 of SU(3) and another one in the $\bar 3$ on each four dimensional end-point of the fifth dimension. Along supersymmetric flat directions the gauge symmetry is broken down to SU(2) due to the vacuum expectation value of the Higgs fields on one of the end points. The remaining massless mode on the other end point acquires a potential due to a massive five dimensional state propagating between the end points. This potential breaks the SU(2) symmetry at an exponentially suppressed scale compared to the SU(3) breaking scale. The suppression factor depends exponentially on the mass M of the massive state and the length $\pi R$ of the fifth dimension. For reasonably large values of the length scale R one can achieve a factor of order $M_{W}/M_GUT}$.

Affiliated with

Also associated with

No associations

Rating

Exponentially Small Couplings and the Hierarchy Problem 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 Exponentially Small Couplings and the Hierarchy Problem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exponentially Small Couplings and the Hierarchy Problem will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-483609