Neutral currents in left-right symmetric gauge models |
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Authors: | Jatinder K Bajaj G Rajasekaran |
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Affiliation: | (1) Department of Theoretical Physics, University of Madras, 600 025 Madras |
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Abstract: | We analyse all the neutral-current phenomena following from the general class of gauge models based on the group SU(2) L ⊗ SU(2) R ⊗ U(1). It is found that the neutral-current couplings in these models bear a remarkable similarity to those in the standard Weinberg-Salam gauge model. The parameter which plays the role of sin2ϑw is found to lie between 0 and 1/2. Comparison with experimental data shows that even a model with the ratio of the masses of the twoZ bosons as small as 1.9 is not ruled out. |
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Keywords: | Neutral currents gauge models SU(2) L ⊗ SU(2) R ⊗ U(1) neutrino parity-violation |
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