$A_{LR}$, Negative $S$, and Extended Gauge Models

Details $A_{LR}$, Negative $S$, and Extended Gauge Models $A_{LR}$, Negative $S$, and Extended Gauge Models

1994-03-07

arxiv.org/abs/hep-ph/9403241v1

Phys.Rev. D50 (1994) 2256-2264

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 9 Figs, LaTex, figures available upon request, SLAC-PUB-6455

Scientific paper

10.1103/PhysRevD.50.2256

The implications of the recent measurement of the left-right asymmetry, $A_{LR}$, by the SLD Collaboration for theories with extended gauge sectors is examined. We show that it is possible to arrange for large, negative values of $S$, based on an analysis of leptonic data, without serious side effects for other observables in certain classes of models. The implications of such scenarios for future measurements on the $Z$ peak, at the Tevatron, and for atomic parity violation experiments are examined.

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