Flavor symmetries and the problem of squark degeneracy

Dine, Michael; Leigh, Robert G.; Kagan, Alex

doi:10.1103/PhysRevD.48.4269

Flavor symmetries and the problem of squark degeneracy

Mar, 1993

13 pages

Published in:

Phys.Rev.D 48 (1993) 4269-4274

e-Print:

hep-ph/9304299 [hep-ph]

DOI:

10.1103/PhysRevD.48.4269

Report number:

SLAC-PUB-6147,
SCIPP-93-04

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Abstract:

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 note, 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

K

-meson phenomenology. This approach suggests likely patterns for squark masses, and indicates that there could be significant supersymmetric contributions to

B-\bar{B}

and

D-\bar{D}

mixing and CP violation in the

K

and

B

systems.

symmetry: flavor
gauge field theory: SU(3) x SU(2) x U(1)
symmetry: SU(2)
horizontal symmetry
quark: mass
mass: quark
postulated particle: squark
mass: squark
squark: mass
K0

References(20)

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