Sg. Porsev et Mg. Kozlov, Calculation of the nuclear spin-dependent parity-nonconserving amplitude for the (7s,F=4)->(7s,F=5) transition in Fr - art. no. 064101, PHYS REV A, 6406(6), 2001, pp. 4101
Many-body calculation of nuclear spin-dependent parity-nonconserving amplit
ude for 7s, F=4 --> 7s, F=5 transition between hyperfine sublevels of the g
round,late of Fr-211 is carried out. The final result is < 7s, 5 parallel t
od(PNC)parallel to 7s, F=4 > = -0.49 x 10(-10) i kappa a.u.. where kappa is
the dimensionless Coupling constant. This is approximately an order of mag
nitude larger than similar amplitude in Cs. The dominant contribution to ka
ppa is associated with the anapole moment of the nucleus.