Gauge Mediation in F-Theory GUT Models
arXiv:0808.1571 · doi:10.1103/PhysRevD.80.046006
Abstract
We study a simple framework for gauge-mediated supersymmetry-breaking in local GUT models based on F-theory 7-branes and demonstrate that a mechanism for solving both the μand μ/B_μ problems emerges in a natural way. In particular, a straightforward coupling of the messengers to the Higgs sector leads to a geometry which not only provides us with an approximate U(1)_{PQ} symmetry that forbids the generation of μat the GUT scale, it also forces the SUSY-breaking spurion field to carry a nontrivial PQ charge. This connects the breaking of SUSY to the generation of μso that the same scale enters both. Moreover, the messenger sector naturally realizes the D3-instanton triggered Polonyi model of arXiv:0808.1286 so this scale is exponentially suppressed relative to M_{GUT}. The effective action at low scales is in fact precisely of the form of the "sweet spot supersymmetry" scenario studied by Ibe and Kitano in arXiv:0705.3686.
34 pages, 4 figures; v4 revisions to section 6
References in corpus (12)
- New Aspects of Heterotic--F Theory Duality
- Non-perturbative Yukawa Couplings from String Instantons
- Computation of D-brane instanton induced superpotential couplings - Majorana masses from string theory
- Modulus-dominated SUSY-breaking soft terms in F-theory and their test at LHC
- Instantons and SUSY breaking in F-theory
- Hierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds
- Wave Functions and Yukawa Couplings in Local String Compactifications
- Gauge Mediation in String Theory
- A string theoretic model of gauge mediated supersymmetry beaking
- Dynamically SUSY Breaking SQCD on F-Theory Seven-Branes
- Sweet Spot Supersymmetry and Composite Messengers
- Supersymmetric Model Building (and Sweet Spot Supersymmetry)
Cited by in corpus (11)
- GUTs in Type IIB Orientifold Compactifications
- Yukawa Structure from U(1) Fluxes in F-theory Grand Unification
- F-theory uplifts and GUTs
- Instantons and SUSY breaking in F-theory
- Fixing D7 Brane Positions by F-Theory Fluxes
- Local Models in F-Theory and M-Theory with Three Generations
- Dynamical supersymmetry breaking from unoriented D-brane instantons
- F-Theory, GUTs and Chiral Matter
- Effective Field Theories for Local Models in F-Theory and M-Theory
- Tetrahedron in F-theory Compactification
- Quiver Gauge Models in F-Theory on Local Tetrahedron