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physics.ed-ph2002
Schwinger's oscillator method, supersymmetric quantum mechanics and massless particles
F. M. Mejia, V. Pleitez
We consider the Schwinger's method of angular momentum addition using the SU(2) algebra with both a fermionic and a bosonic oscillator. We show that the total spin states obtained…
hep-ph2002
Left-right asymmetries, the weak mixing angle, and new physics
J. C. Montero, V. Pleitez, M. C. Rodriguez
The goal of this article is to outline the advantages of the measurement of left-right asymmetries in lepton-lepton () scattering for performing precision…
hep-ph2002
Realistic extremely flat scalar potential in 3-3-1 models
Alex G. Dias, V. Pleitez, M. D. Tonasse
We show that in 3-3-1 models it is possible to implement an extremely flat scalar potential, i.e., a zero contribution to the cosmological constant, and still having realistic valu…