Flavor symmetries and the problem of squark degeneracy

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.4269· OSTI ID:5994683

Dine, M; Leigh, R ^[1]; Kagan, A ^[2]

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1. Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, California 95064 (United States)
2. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States)

If supersymmetry exists at low energies, it is necessary to understand why the squark spectrum exhibits sufficient degeneracy to suppress flavor-changing neutral currents. In this article, we point out that gauged horizontal symmetries can yield realistic quark mass matrices, while at the same time giving just barely enough squark degeneracy to account for neutral [ital K]-meson phenomenology. This approach suggests likely patterns for squark masses, and indicates that there could be significant supersymmetric contributions to [ital B]-[ital [bar B]] and [ital D]-[ital [bar D]] mixing and [ital CP] violation in the [ital K] and [ital B] systems.

• DOE Contract Number: FG03-92ER40689; AC03-76SF00515
• OSTI ID: 5994683
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662120* -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662210 -- Specific Theories & Interaction Models
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTI-B NEUTRAL MESONS
ANTI-D NEUTRAL MESONS
ANTIMATTER
ANTIPARTICLES
B MESONS
B NEUTRAL MESONS
BEAUTY PARTICLES
BOSONS
CHARM PARTICLES
CHARMED MESONS
CP INVARIANCE
D MESONS
D NEUTRAL MESONS
ELEMENTARY PARTICLES
FERMIONS
FLAVOR
GAUGE INVARIANCE
HADRONS
INVARIANCE PRINCIPLES
KAONS
KAONS NEUTRAL
MATTER
MESONS
MIXING
ORGANOLEPTIC PROPERTIES
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
QUARKS
SPECTRA
STRANGE MESONS
STRANGE PARTICLES
SUPERSYMMETRY
SYMMETRY
VIOLATIONS