"Nucleon-Structural" Corrections to First Forbidden Unique Beta Transitions
- 15 December 1959
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 116 (6) , 1604-1609
- https://doi.org/10.1103/physrev.116.1604
Abstract
The coupling of leptons to a conserved isovector current is shown to result in a small change in the shape of the electron momentum spectrum in forbidden unique beta transitions. The experimental advantages and disadvantages of studying such nucleon-structural effects in forbidden unique transitions rather than in allowed transitions, as suggested by Gell-Mann, are discussed. To facilitate the computations, the betadecay interaction Hamiltonian is written in a form in which the terms leading to the "nucleon-structural" corrections associated with the coupling of the leptons to a conserved isovector current and the terms leading to effects of comparable order of magnitude are simply identified.Keywords
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