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Anomalous U(1), Gauge-Mediated Supersymmetry Breaking and Higgs as Pseudo-Goldstone Bosons
Gia Dvali, Alex Pomarol
We study the breaking of supersymmetry in models with anomalous U(1). These models are simple to construct and contain natural candidates for being the messengers of gauge-mediated…
Hybrid Inflation and Particle Physics
Gia Dvali, Lawrence M. Krauss, Hong Liu
The prototype hybrid SUSY SU(5) inflation models, while well motivated from particle physics, and while allowing an acceptable inflationary phase with little or no fine tuning, are…
A Simple Complete Model of Gauge-Mediated SUSY-Breaking and Dynamical Relaxation Mechanism for Solving the mu-Problem
Savas Dimopoulos, Gia Dvali, Riccardo Rattazzi
In this paper two things are done. First, we propose a simple model of dynamical gauge-mediated SUSY breaking. This model incorporates a dynamical relaxation mechanism which solves…
New physics in a nutshell, or Q-ball as a power plant
Gia Dvali, Alexander Kusenko, Mikhail Shaposhnikov
Future experiments may discover new scalar particles with global charges and couplings that allow for solitonic states. If the effective potential has flat directions, the scalar V…
Dynamical Flavor Hierarchy and Heavy Top
Gia Dvali, Zurab Kakushadze
In the Standard Model one of the generations is much heavier than the other two. We propose a simple mechanism where all three generations are treated on the equal footing to begin…
Supersymmetry Breaking with Vanishing F-terms in Supergravity Theories
Gia Dvali, Alex Pomarol
In conventional supergravity theories, supersymmetry is broken by a non-zero F-term, and the cosmological constant is fine tuned to zero by a constant in the superpotential W. We d…