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Status of the standard vector—axial-vector model for nuclear beta decay

Boothroyd, A. I. and Markey, J. and Vogel, P. (1984) Status of the standard vector—axial-vector model for nuclear beta decay. Physical Review C, 29 (2). pp. 603-617. ISSN 0556-2813. http://resolver.caltech.edu/CaltechAUTHORS:BOOprc84

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Abstract

The complete set of experimental results on correlations in nuclear beta decay is analyzed in terms of the general Hamiltonian including scalar, vector, axial vector, and tensor interactions with an arbitrary degree of parity violation. It is concluded that the standard vector minus axial-vector model with maximal parity violation (left-handed lepton current) is compatible with the data and rigorous limits are obtained for the values of possible additional coupling constants. In the scalar and tensor case the new constraints are considerably tighter than those published before: |CS / CV| and |CS′ / CV|≤0.2, |(CS+CS′) / CV|≤0.06; |CT / CA| and |CT′ / CA|≤0.09, |(CT+CT′) / CA|≤0.01, all at the 95% confidence level. On the other hand, rather large admixtures of the right-handed lepton currents (CV′ / CV≠1 or CA′ / CA≠1) are allowed by the data. An analysis of the correlations between various coupling constants implied by the data is also performed.


Item Type:Article
Additional Information:©1984 The American Physical Society Received 16 June 1983 We would like to thank Professor Felix Boehm for encouragement and interesting discussions. This work was supported by the US DOE Grant DE-AT03-81ER40002.
Subject Keywords:RADIOACTIVITY Correlations in β decay analyzed; limits on unusual couplings deduced
Record Number:CaltechAUTHORS:BOOprc84
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BOOprc84
Alternative URL:http://dx.doi.org/10.1103/PhysRevC.29.603
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8382
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:02 Aug 2007
Last Modified:26 Dec 2012 09:38

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