Metastability bounds on flavor-violating trilinear soft terms in the MSSM
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg (Germany)
The vacuum stability bounds on flavor-violating trilinear soft terms are revisited from the viewpoint that one should not ban a standard-model-like false vacuum as long as it is long-lived on a cosmological time scale. The vacuum transition rate is evaluated numerically by searching for the bounce configuration. Like stability, a metastability bound does not decouple even if sfermion masses grow. Apart from being more generous than stability, the new bounds are largely independent of Yukawa couplings except for the stop trilinears. With vacuum longevity imposed on otherwise arbitrary LR insertions, it is found that a super flavor factory has the potential to probe sparticle masses up to a few TeV through B and {tau} physics whereas the MEG experiment might cover a far wider range. In the stop sector, metastability is more restrictive than any existing experimental constraint such as from electroweak precision data. Also discussed are dependency on other parameters and reliability under radiative corrections.
- OSTI ID:
- 21537455
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevD.83.055015; (c) 2011 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
SO(10) SUSY GUT for fermion masses: Lepton flavor and CP violation
Naturally flavorful supersymmetry at the LHC
Related Subjects
CONFIGURATION
COUPLING
FLAVOR MODEL
MASS
RADIATIVE CORRECTIONS
RELIABILITY
SPARTICLES
STABILITY
STANDARD MODEL
SUPERSYMMETRY
TEV RANGE 01-10
YUKAWA POTENTIAL
COMPOSITE MODELS
CORRECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GRAND UNIFIED THEORY
MATHEMATICAL MODELS
NUCLEAR POTENTIAL
PARTICLE MODELS
POSTULATED PARTICLES
POTENTIALS
QUANTUM FIELD THEORY
QUARK MODEL
SYMMETRY
TEV RANGE
UNIFIED GAUGE MODELS