Relations among neutral current couplings to test su(2) by u(1) gauge group structure
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Relations among neutral current couplings to test su(2) by u(1) gauge group structure

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Relations among neutral current couplings to test su(2) by u(1) gauge group structure

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Bernabeu Alberola, José Perfil; Jarlskog, Cecilia
This document is a artículoDate1977

Este documento está disponible también en : http://hdl.handle.net/10550/53223

We propose a test of the validity of SU(2) ⊗ U(1) as the gauge group of weak and electromagnetic interactions. We find that, among the seven empirical neutral current couplings, there are two restrictions which do not rely on a particular model. The relations are 2( G V + G A ) + ( α + β ) + 3( γ + δ ) = 0 and 2 k − ( α + β ) + 3( γ + δ ) = 0, where where α , β , γ , δ ( G V , G A ) are the couplings measured in neutrino-hadron (electron) scattering and κ is obtained from interference experiments. We also find several inequalities. Comparison with present data is given.

    Bernabeu Alberola, José; Jarlskog, Cecilia (1977) Relations among neutral current couplings to test su(2) by u(1) gauge group structure Physics Letters B 69 1 71 76
http://dx.doi.org/10.1016/0370-2693(77)90136-8

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