Logarithmic unification from symmetries enhanced in the sub-millimeter infrared
In theories with TeV string scale and sub-millimeter extra dimensions the attractive picture of logarithmic gauge coupling unification at 10{sup 16} GeV is seemingly destroyed. In this paper we argue to the contrary that logarithmic unification can occur in such theories. The rationale for unification is no longer that a gauge symmetry is restored at short distances, but rather that a geometric symmetry is restored at large distances in the bulk away from our 3-brane. The apparent ''running'' of the gauge couplings to energies far above the string scale actually arises from the logarithmic variation of classical fields in (sets of) two large transverse dimensions. We present a number of N = 2 and N = 1 supersymmetric D-brane constructions illustrating this picture for unification.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of High Energy Physics; National Science Foundation Grant PHY-95-14797; Alfred P. Sloan Foundation (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 840225
- Report Number(s):
- LBNL-44031; R&D Project: PTHOPS; TRN: US0501857
- Journal Information:
- High Energy Physics - Theory, Vol. hep-th/9908146; Other Information: Submitted to High Energy Physics - Theory: hep-th/9908146; Journal Publication Date: August 1999; PBD: 21 Aug 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gauge unification in higher dimensions
Stabilization of Sub-Millimeter Dimensions: The New Guise of the Hierarchy Problem