Orbifold Breaking of Left-Right Gauge Symmetry

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Abstract
We study the five dimensional left-right symmetric gauge theory in which the gauge symmetry is broken down through orbifold compactification to four dimensions. The right handed charged gauge boson, W_R is a Kaluza-Klein excited state in this model, and unlike the usual left-right symmetric model in four dimension, there is no mixing in the charged sector. We develop the formalism and give expressions for the gauge boson masses and mixings and their couplings to the fermions. Phenomenology of the model is briefly studied to put constraints on the right-handed gauge boson masses and the orbifold compactification scale.

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