The Ξ³-circular polarizations (PΞ³β) and asymmetries
(AΞ³β) of the parity forbidden M1 + E2 Ξ³-decays: 36Clβ(JΟ=2β;T=1;Exβ=1.95 MeV) β36Cl(JΟ=2+;T=1;g.s.) and 36Arβ(JΟ=2β;T=0;Exβ=4.97 MeV) β36Arβ(JΟ=2+;T=0;Exβ=1.97
MeV) are investigated theoretically. We use the recently proposed
Warburton-Becker-Brown shell-model interaction. For the weak forces we discuss
comparatively different weak interaction models based on different assumptions
for evaluating the weak meson-hadron coupling constants. The results determine
a range of PΞ³β values from which we find the most probable values:
PΞ³β = 1.1β 10β4 for 36Cl and PΞ³β = 3.5β 10β4 for 36Ar.Comment: RevTeX, 17 pages; to appear in Phys. Rev.