Phys. Rev. Lett. 65, 2963–2966 (1990)Atomic parity violation as a probe of new physicsSee Also: Erratum Received 30 August 1990; published in the issue dated 10 December 1990 Effects of physics beyond the standard model on electroweak observables ares studied using the Peskin-Takeuchi isospin-conserving, S, and -breaking, T, parametrization of ‘‘new’’ quantum loop corrections. Experimental constraints on S and T are presented. Atomic parity-violating experiments are shown to be particularly sensitive to S with existing data giving S=-2.7±2.0±1.1. That constraint has important implications for generic technicolor models which predict S≃0.1NTND (NT is the number of technicolors, ND is the number of technidoublets). © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.65.2963
DOI:
10.1103/PhysRevLett.65.2963
PACS:
12.15.Ji, 12.15.Cc, 35.10.Wb
See AlsoErratum: William J. Marciano and Jonathan L. Rosner, Atomic Parity Violation as a Probe of New Physics, Phys. Rev. Lett. 68, 898 (1992). |
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