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5 papers · 2 filters
Implications of a Higgs Discovery at LEP
P. Q. Hung, Marc Sher
If the Higgs boson has a mass below 130 GeV, then the standard model vacuum is unstable; if it has a mass below 90 GeV (i.e. within reach of LEP within the next two years), then th…
New Bounds on R-Parity Violating Couplings
Marc Sher
Bounds on R-parity violating couplings in the supersymmetric standard model are reviewed, and some new bounds arising from non-observation of certain rare B-decays (such as $B \rig…
New Bounds on R-parity Violating Couplings
Carl Carlson, Probir Roy, Marc Sher
We use information from rare nonleptonic decays of heavy-quark mesons to put new bounds on the magnitudes of certain product combinations of baryon nonconserving R-parity violating…
Charged Leptons With Nanosecond Lifetimes
Marc Sher
Some extensions of the standard model contain additional leptons which are vectorlike under weak isospin. A class of models is considered in which these leptons do not appreciably…
Bounds on Couplings in the Supersymmetric Standard Model
J. L. Goity, Marc Sher
The most general supersymmetric model contains baryon number violating terms of the form $\lm_{ijk}\ \ov{D}_i\ \ov{D}_j\ \ov{U}_k$ in the superpotential. We reconsider the bounds o…