BT1: Hidden Sector Phenomenology Supersymmetry breaking through `hidden sector' strong dynamics remains one of the theoretically most appealing frameworks allowing to understand the observed hierarchies such as the ratio of Fermi's and Newton's constants. The corresponding models are (to a large extent) calculable, hence one might obtain a predictive scheme for explaining soft supersymmetry breaking parameters. In special situations, one might even hope to probe certain aspects of the `hidden sector' at LHC.
The proposal of dynamical supersymmetry breakdown has become much more plausible through the work of Intriligator, Seiberg and Shih (ISS) [1], who have shown that local (metastable but sufficiently long-lived) supersymmetry-breaking vacua are generic in supersymmetric gauge theories. A particularly nice example has been worked out in [2].
The embedding of `metastable supersymmetry breaking' à la ISS [1] in supergravity leads to a particularly attractive realization of `F-term uplifting' [3, 4].
References:
- K. Intriligator, N. Seiberg, and D. Shih,
Dynamical SUSY breaking in meta-stable vacua,
JHEP 04 (2006) 021, hep-th/0602239
- F. Brümmer,
A natural renormalizable model of metastable SUSY breaking,
JHEP 07 (2007) 043, 0705.2153 [hep-ph]
- O. Lebedev, H. P. Nilles and M. Ratz,
de Sitter vacua from matter superpotentials,
Phys. Lett. B636 (2006) 126, hep-th/0603047.
- O. Lebedev, V. Lowen, Y. Mambrini, H. P. Nilles and M. Ratz,
Metastable vacua in flux compactifications and their phenomenology,
JHEP 0702 (2007) 063, hep-ph/0612035.
