Effects of heavy modes on vacuum stability in supersymmetric theories
arXiv:1009.0668 · doi:10.1007/JHEP11(2010)134
Abstract
We study the effects induced by heavy fields on the masses of light fields in supersymmetric theories, under the assumption that the heavy mass scale is much higher than the supersymmetry breaking scale. We show that the square-masses of light scalar fields can get two different types of significant corrections when a heavy multiplet is integrated out. The first is an indirect level-repulsion effect, which may arise from heavy chiral multiplets and is always negative. The second is a direct coupling contribution, which may arise from heavy vector multiplets and can have any sign. We then apply these results to the sGoldstino mass and study the implications for the vacuum metastability condition. We find that the correction from heavy chiral multiplets is always negative and tends to compromise vacuum metastability, whereas the contribution from heavy vector multiplets is always positive and tends on the contrary to reinforce it. These two effects are controlled respectively by Yukawa couplings and gauge charges, which mix one heavy and two light fields respectively in the superpotential and the Kahler potential. Finally we also comment on similar effects induced in soft scalar masses when the heavy multiplets couple both to the visible and the hidden sector.
arXiv commentLaTex, 24 pages, no figures; v2 some comments and references added
References in corpus (22)
- Lectures on supersymmetric gauge theories and electric-magnetic duality
- Stability of flux compactifications and the pattern of supersymmetry breaking
- Distributions of nonsupersymmetric flux vacua
- Field Dependent Gauge Couplings in Locally Supersymmetric Effective Quantum Field Theories
- Locally stable non-supersymmetric Minkowski vacua in supergravity
- de Sitter vacua in no-scale supergravities and Calabi-Yau string models
- Dynamical supersymmetry breaking in models with a Green-Schwarz mechanism
- Effective Potentials for Light Moduli
- ON GAUGINO CONDENSATION WITH FIELD-DEPENDENT GAUGE COUPLINGS
- Constraints for the existence of flat and stable non-supersymmetric vacua in supergravity
- Metastable supergravity vacua with F and D supersymmetry breaking
- Superfield Derivation of the Low-Energy Effective Theory of Softly Broken Supersymmetry
- On Integrating Out Heavy Fields in SUSY Theories
- Constructing de Sitter vacua in no-scale string models without uplifting
- An Effective Description of the Landscape - I
- Flavor and CP conserving moduli mediated SUSY breaking in flux compactification
- Globally and locally supersymmetric effective theories for light fields
- D-type supersymmetry breaking and brane-to-brane gravity mediation
- Sparticle masses in deflected mirage mediation
- An Effective Description of the Landscape - II
- A Note on the Effective Soft SUSY-Breaking Lagrangian Below the GUT Scale
- Metastable supersymmetry breaking in N=2 non-linear sigma-models