Flavorful supersymmetry

Journal Article · Tue Apr 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.075006· OSTI ID:21249962

Nomura, Yasunori; Stolarski, Daniel ^[1]; Papucci, Michele ^[2]

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1. Department of Physics, University of California, Berkeley, California 94720 (United States)
2. School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States)

Weak scale supersymmetry provides elegant solutions to many of the problems of the standard model, but it also generically gives rise to excessive flavor and CP violation. We show that, if the mechanism that suppresses the Yukawa couplings also suppresses flavor changing interactions in the supersymmetry breaking parameters, essentially all the low energy flavor and CP constraints can be satisfied. The standard assumption of flavor universality in the supersymmetry breaking sector is not necessary. We study signatures of this framework at the LHC. The mass splitting among different generations of squarks and sleptons can be much larger than in conventional scenarios, and even the mass ordering can be changed. We find that there is a plausible scenario in which the next-to-lightest superparticle is a long-lived right-handed selectron or smuon which decays into the lightest superparticle, a gravitino. This leads to the spectacular signature of monochromatic electrons or muons in a stopper detector, providing strong evidence for the framework.

• OSTI ID: 21249962
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
COUPLING
CP INVARIANCE
ELECTRONS
FLAVOR MODEL
INTERACTIONS
MASS
MATHEMATICAL SOLUTIONS
MONOCHROMATIC RADIATION
MUONS
PARTICLE DECAY
STANDARD MODEL
SUPERSYMMETRY
SYMMETRY BREAKING
YUKAWA POTENTIAL