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Unified Theories with U(2) Flavor Symmetry
R. Barbieri, L. J. Hall, S. Raby +1
A general operator expansion is presented for quark and lepton mass matrices in unified theories based on a U(2) flavor symmetry, with breaking parameter of order $V_{cb} \approx m…
Squarks in Tevatron Dilepton Events ?
R. Michael Barnett, Lawrence J. Hall
We consider unusual events in the CDF and D0 dilepton+jets sample with very high ET(lepton) and ET(missing). It is possible, but very unlikely, that these events originate from top…
A Multilepton signal for supersymmetric particles in Tevatron data?
R. Michael Barnett, Lawrence J. Hall
The CDF and D0 collaborations have both reported unusual events in the dilepton+jets sample with very high lepton and missing transverse energies. It is possible, but very unlikely…
The heavy top quark and supersymmetry
Lawrence J. Hall
Three aspects of supersymmetric theories are discussed: electroweak symmetry breaking, the issues of flavor, and gauge unification. The heavy top quark plays an important, sometime…
A Grand Unified Supersymmetric Theory of Flavor
Riccardo Barbieri, Lawrence Hall
A grand unified theory is constructed with a hierarchical breaking of a flavor symmetry. The small parameters of the squark and slepton mass matrices, necessary to s…