الفهرس 
TeV scale left right symmetric model with minimal higgs sector
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Abstract
Nonvanishing neutrino masses represents one of the {uFB01}rm observational evidences of new physics beyond the Standard Model. The fact that neutrinos are massless in the SM is a re{uFB02}ection to the chiral structure of weak interaction that leads to a complete asymmetry between left and right. Left - right models, which are based on the gauge symmetry SU (3) C {u00D7} SU (2) L {u00D7} SU (2) R {u00D7} U (1) B - L, are well motivated extensions of the SM since they automatically contain the ingredients to explain the observed neutrino masses and mixings. We analyse the Left-Right Model in which the left - right symmetry is broken by triplets at a high scale. We also study the implications of this model for particle physics. In particular, we show that this conventional Left - Right Model su{uFB00}ering from tree-level {uFB02}avor - changing neutral currents and the scale of breaking the SU(2)R must be at very high scale. Our analysis focus on the alternative left-right symmetric model, motivated by the superstring-inspired E6 model. We reconstruct the model and systematically analyze the constraints imposed by theoretical and experimental bounds on the parameter space of this class of models. We discuss the bounds on the right-handed gauge bo- son masses and possible ways of detecting the WR± and ZR