M. Horoi et G. Clausnitzer, PROPOSED NEW EXPERIMENTAL CASE TO INVESTIGATE THE WEAK PARITY NONCONSERVING COUPLINGS IN F-20, Physical review. C. Nuclear physics, 48(2), 1993, pp. 522-525
A new experiment to investigate the isospin sensitivity of the parity
nonconserving (PNC) interaction in light nuclei is proposed. The obser
vable is the PNC asymmetry for the emitted gamma rays from the 1-1 sta
te in F-20 (E(x) = 0.983 MeV) partially polarized in the reaction Ne-2
2(d over arrow pointing right, alpha3)F-20, which is predicted in the
range (2.4-5.8) X 10(-5). The structure parts of the components of the
PNC matrix elements have been carefully calculated for the analysis o
f the experimental result in terms of the weak coupling constants. A n
ew class of diagrams contributing to the PNC matrix elements has been
included for the first time.