publication . Article . Other literature type . 2015

High-precision half-life measurements of the T =1/2 mirror $\beta$ decays $^{17}$F and $^{33}$Cl

J. Grinyer; G. F. Grinyer; M. Babo; H. Bouzomita; P. Chauveau; P. Delahaye; M. Dubois; R. Frigot; P. Jardin; C. Leboucher; ...
Open Access English
  • Published: 01 Oct 2015
  • Publisher: HAL CCSD
Background: Measurements of the ft values for T=1/2 mirror β+ decays offer a method to test the conserved vector current hypothesis and to determine Vud, the up-down matrix element of the Cabibbo-Kobayashi-Maskawa matrix. In most mirror decays used for these tests, uncertainties in the ft values are dominated by the uncertainties in the half-lives. Purpose: Two precision half-life measurements were performed for the T=1/2β+ emitters, 17F and 33Cl, in order to eliminate the half-life as the leading source of uncertainty in their ft values. Method: Half-lives of 17F and 33Cl were determined using β counting of implanted radioactive ion beam samples on a moving tap...
free text keywords: Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Beta (finance), Matrix (mathematics), Nuclear physics, Ion beam, Beta decay, Physics, Half-life, Spiral, Double beta decay, Low energy, Atomic physics
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