Left-Right Symmetry in Nuclear Beta Decay under Investigation with a New Bhabha Polarimeter

Precise observation of the ratio P/sub F//P/sub GT/ of beta polarizations for Fermi and Gamow-Teller decays can provide stringent constraints on electroweak models. The result of a first measurement, with a Bhabha polarimeter of novel design, is P/sub F//P/sub GT/ = 0.986 +- 0.038. Resulting bounds,...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1983-01, Vol.50 (2), p.94-97
Hauptverfasser:	van Klinken, J., Stam, K., Venema, W. Z., Wichers, V. A., Atkinson, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	651422 > Nuclear Properties & Reactions, A=20-38, Experimental-- Radioactive Decay-- (-1987) ACCURACY ALUMINIUM 26 ALUMINIUM ISOTOPES ASYMMETRY BETA DECAY BETA DECAY RADIOISOTOPES BETA-PLUS DECAY BETA-PLUS DECAY RADIOISOTOPES BHABHA SCATTERING DATA DECAY DESIGN ELASTIC SCATTERING EXPERIMENTAL DATA INFORMATION INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ISOTOPES LIGHT NUCLEI MINUTES LIVING RADIOISOTOPES NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEI NUMERICAL DATA ODD-ODD NUCLEI PHOSPHORUS 30 PHOSPHORUS ISOTOPES POLARIMETERS POLARIZATION RADIOISOTOPES SCATTERING SECONDS LIVING RADIOISOTOPES YEARS LIVING RADIOISOTOPES 440103 > Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
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Beschreibung
Zusammenfassung:	Precise observation of the ratio P/sub F//P/sub GT/ of beta polarizations for Fermi and Gamow-Teller decays can provide stringent constraints on electroweak models. The result of a first measurement, with a Bhabha polarimeter of novel design, is P/sub F//P/sub GT/ = 0.986 +- 0.038. Resulting bounds, being comparable to those from existing muon polarization experiments, are limited by statistics. Precisions of order 10/sup -3/ or better may be anticipated with an extended system.
ISSN:	0031-9007
DOI:	10.1103/PhysRevLett.50.94