Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-06-10
Nucl.Phys.B524:23-40,1998
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages including 4 figures, Latex. A numerical error is corrected which changes figure number 4. The rest of the paper stays
Scientific paper
10.1016/S0550-3213(98)00234-X
We show that the minimal R-parity breaking model characterized by an effective bilinear violation of R-parity in the superpotential is consistent with minimal N=1 supergravity unification with radiative breaking of the electroweak symmetry and universal scalar and gaugino masses. This one-parameter extension of the MSSM-SUGRA model provides therefore the simplest reference model for the breaking of R-parity and constitutes a consistent truncation of the complete dynamical models with spontaneous R-parity breaking proposed previously. We comment on the lowest-lying CP-even Higgs boson mass and discuss its minimal N=1 supergravity limit, determine the ranges of $\tan\beta$ and bottom quark Yukawa couplings allowed in the model, as well as the relation between the tau neutrino mass and the bilinear R-parity violating parameter.
Diaz Marco A.
Romão Jorge C.
Valle Jose W. F.
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