RELATIVISTIC MEAN-FIELD APPROACH TO ANAPOLE MOMENT - ATOMIC PARITY-VIOLATING HYPERFINE TRANSITIONS

A generalized formula of nuclear anapole moment-is derived using the c urrent relativistic nuclear approach. The Dirac spin magnetization and the anomalous spin magnetization contributions to anapole moment are shown to be proportional to the second moment of respective magnetizat ions. The valence nucleon effective g(l)(g(a)) factors in a nucleus ar e obtained from the different phenomenological generalizations of rela tivistic nuclear magnetic moment. The unitary transformation approach is used to derive the parity nonconserving (PNC) perturbed wave functi ons. In the case of gl parametrization, the anomalous spin magnetizati on and pion contributions to anapole moment are nearly two and three t imes the Dirac magnetization contribution respectively; while for g(a) parametrization, all the three contributions are of the same order of magnitude. Using these calculated values of anapole moment and availa ble atomic structure data from published literature, the Cs-133 pNC hy perfine amplitudes are calculated. The results are closer to the exper imental data, particularly when the measured value of ImEP1(p.v.)/beta is used. The optical rotation angles induced by nuclear spin dependen t PNC interaction are also calculated.