Limits on nonstandard weak currents from the positron decays ofO14andC10
- 24 December 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (26), 3249-3252
- https://doi.org/10.1103/PhysRevLett.65.3249
Abstract
The relative polarization of positrons emitted in pure Fermi O) and Gamow-Teller C) decays has been measured using a new technique based on time-resolved positronium decay. The result /=0.9996±0.0037 provides constraints on possible right-handed and scalar-tensor current admixtures to the weak interaction of -4<ζδ×<7 and ‖(/)-(/)‖=(1±9)× (90% C.L.), respectively.
Keywords
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