Abstract
The hyperfine interaction constants of the z P726 and z P728 levels of the configuration 4f 6s76p of the isotopes Eu151 and Eu153 have been remeasured with the laser-atomic-beam technique. The analysis yields values of -6.80(26)% and -1.00(3)%, respectively, for the hyperfine anomalies. The anomaly in the z P726 level is the largest so far observed and deviates considerably from the ground-state hyperfine anomaly. The experimental values of the hyperfine anomaly are compared with a calculation based on Nilsson-type nuclear wave functions. Possibly the electronic-state dependence of the hyperfine anomaly is due to core polarization. © 1980 The American Physical Society.
Original language | English |
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Pages (from-to) | 1491-1499 |
Journal | Physical Review A. Atomic, Molecular and Optical Physics |
Volume | 22 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1980 |