Kinematic Shifts in the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>β</mi></math>-Delayed Particle Decay of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Na</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>20</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, and the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>β</mi><mo>−</mo><mi>ν</mi></math> Angular Correlation

E. T. H. Clifford; J. C. Hardy; H. Schmeing; R. E. Azuma; H. C. Evans; T. Faestermann; E. Hagberg; K. P. Jackson; V. T. Koslowsky; U. J. Schrewe; K. S. Sharma; I. S. Towner

doi:10.1103/PhysRevLett.50.23

Kinematic Shifts in the $β$ -Delayed Particle Decay of ${}^{20}{Na}$ , and the $β - ν$ Angular Correlation

E. T. H. Clifford, J. C. Hardy, H. Schmeing, R. E. Azuma, H. C. Evans, T. Faestermann, E. Hagberg, K. P. Jackson, V. T. Koslowsky, U. J. Schrewe, K. S. Sharma, and I. S. Towner

Phys. Rev. Lett. 50, 23 – Published 3 January 1983

Abstract

Kinematic shifts of $α$ particles from the $β$ -delayed particle decay of ${}^{20}{Na}$ were measured in a coincidence experiment. $β - ν - α$ triple correlation coefficients were determined. Limits on isospin mixing amplitudes were deduced for states in ${}^{20}{Ne}$ . The vector weak-coupling constant was deduced from the superallowed $J^{π} = 2^{+} \to 2^{+}$ $β$ decay of ${}^{20}{Na}$ to be ${G_{V}}^{'} = (1.365 \pm 0.037) \times 10^{- 49}$ erg ${cm}^{3}$ .

Received 6 October 1982

DOI:https://doi.org/10.1103/PhysRevLett.50.23

Authors & Affiliations

E. T. H. Clifford, J. C. Hardy, H. Schmeing, R. E. Azuma, H. C. Evans, T. Faestermann^*, E. Hagberg, K. P. Jackson^†, V. T. Koslowsky, U. J. Schrewe^‡, K. S. Sharma, and I. S. Towner

Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, Canada K0J1J0, and Physics Department, University of Toronto, Toronto, Ontario, Canada M5S1A7, and Physics Department, Queen's University, Kingston, Ontario, Canada K7L 3N6

^*Present address: Physics Department, Technical University of Munich, James Franck Staasse, 8046 Garching, Germany.
^†Present address: TRIUMF, University of British Columbia, Vancouver, British Columbia V6T 1W5, Canada.
^‡Present address: University of Göttingen, Göttingen, Germany.