A Predictive ansatz for fermion mass matrices in supersymmetric grand unified theories

Dimopoulos, Savas; Hall, Lawrence J.; Raby, Stuart

doi:10.1103/PhysRevD.45.4192

A Predictive ansatz for fermion mass matrices in supersymmetric grand unified theories

Savas Dimopoulos
(
- Stanford U., Phys. Dept.
)
,
Lawrence J. Hall
(
- UC, Berkeley
)
,
Stuart Raby
(
- Ohio State U.
)

Dec, 1991

21 pages

Published in:

Phys.Rev.D 45 (1992) 4192-4200

DOI:

10.1103/PhysRevD.45.4192

Report number:

UCB-PTH-91-61,
LBL-31441,
DOE-ER-10545-567,
ITP-908-91-STANFORD

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Abstract: (APS)

In this paper we present a new Ansatz for fermion mass matrices in the context of supersymmetric grand unified theories. We are able to fit the 13 parameters, associated with quark and lepton masses and mixing angles, and the ratio of Higgs vacuum expectation values (VEV's) which enters any supersymmetric theory, in terms of 8 input parameters; hence, we have 6 predictions. The top quark is predicted to have a mass in the range 176 to 190 GeV, where the upper bound results from the assumption of perturbative unification, and the lower bound is sensitive to the experimental value of Vcb. Predictions are also made for ms, msmd, |VubVcb|, the ratio of Higgs VEV's, and the CP-violating phase of the Kobayashi-Maskawa matrix.

supersymmetry
grand unified theory
fermion: mass
mass: fermion
parametrization
CKM matrix matrix
CP: violation
coupling: Yukawa
Yukawa: coupling
renormalization group

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