Non-perturbative decay of udd and QLd flat directions
arXiv:0910.0854 · doi:10.1103/PhysRevD.80.123520
Abstract
The Minimal Supersymmetric Standard Model has several flat directions, which can naturally be excited during inflation. If they have a slow (perturbative) decay, they may affect the thermalization of the inflaton decay products. In the present paper, we consider the system of udd and QLd flat directions, which breaks the U(1)xSU(2)xSU(3) symmetry completely. In the unitary gauge and assuming a general soft breaking mass configuration, we show that for a range of parameters, the background condensate of flat directions can undergo a fast non-perturbative decay, due to non-adiabatic evolution of the eigenstates. We find that both the background evolution and part of the decay can be described accurately by previously studied gauged toy models of flat direction decay.
32 pages, 1 figure
References in corpus (9)
- Gauge invariant MSSM inflaton
- The Fate of SUSY Flat Directions and their Role in Reheating
- Longevity of supersymmetric flat directions
- The nonperturbative decay of SUSY flat directions
- Supersymmetric Leptogenesis and the Gravitino Bound
- Gravitational Waves from the Non-Perturbative Decay of Condensates along Supersymmetric Flat Directions
- Non-Perturbative Flat Direction Decay
- Study of the Growth of Entropy Modes in MSSM Flat Directions Decay: Constraints on the Parameter Space
- Inflation and Preheating in Supergravity with MSSM Flat Directions
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