Parity violations in electron-nucleon scattering and the SU(2)L ×SU(2)R ×U(1)L+R electroweak symmetry |
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| Authors: | S Rajpoot |
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| Institution: | 1. International Centre for Theoretical Physics, Trieste, Italy;2. Imperial College, London, England |
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| Abstract: | The SU(2)L ×SU(2)R ×U(1)L+R model of elecroweak interactions is described with the most general gauge couplings gL, gRandgL+R. The case in which neutrino neutral current interactions are identical to the standard SU(2)L ×U(1)L+R model is discussed in detail. It is shown that with the weak angle lying in the experimental range sin2θw = 0.23 ± 0.015 and 1 < gL2/gR2 < 3 it is possible to explain the amount of parity violation observed at SLAC and at the same time predict values of the “weak charge” in bismuth to lie in the range admitted by the controversal data from different experiments. |
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