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Author Carlson, T. A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ ANGULAR DISTRIBUTION ♦ BETA DECAY ♦ BETA PARTICLES ♦ DISTRIBUTION ♦ ELECTRONS ♦ ENERGY ♦ ENERGY LEVELS ♦ ERRORS ♦ INTERACTIONS ♦ IONS ♦ MEASURED VALUES ♦ NEON 23 ♦ NEUTRINOS ♦ RECOILS ♦ SODIUM ♦ SPECTRA ♦ V-A THEORY
Abstract Following the beta decay of Ne/sup 23/, the sodium ions have a recoil energy distribution which is dependent on the nature of the decay. A precise measurement was made of the recoil spectrum from 100 to 500 ev. From these data the electron-neutrino angular correlation coefficient alpha was determined to be --0.33 plus or minus 0.03, in good agreement with V-A interaction. The quoted error includes an uncertainty of only 2% due solely to the recoil measurements. The principal uncertainty in alpha arises from the errors quoted by Penning andd Schmidt for their measurements of the BETA --ray intensities to the ground and first excited states. If it is assumed that V-A interaction is valid andd hence alpha = 1/3, the BETA /sup -/-ray intensities to the ground and first excited states of Na/sup 23/ may be calculated from the recoil data. Such calculations were made and the results are, respectively, (67 plus or minus 1)% and (32 plus or minus 1)%. From the end point of the recoil spectrum, the decay energy to the ground state was determined to be 4.383 plus or minus 0.008 Mev. (auth)
ISSN 0031899X
Educational Use Research
Learning Resource Type Article
Publisher Date 1963-12-01
Publisher Department Oak Ridge National Lab., Tenn.
Journal Physical Review
Volume Number 132
Organization Oak Ridge National Lab., Tenn.


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