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ABSTRACT

Kohler and Thaddeus 1964

Kohler, R., and P. Thaddeus, 1964: gJ of the (5s5p) 3P1 level of Cd and the (6s6p) 3P1 level of Hg by high-field double resonance. Phys. Rev. A, 134, 1204-1209, doi:10.1103/PhysRev.134.A1204.

An optical double resonance experiment at high magnetic fields has determined gJ for the (5s5p) 3P1 level of the even cadmium isotopes to be 1.499846(13), and gJ for the (6s6p) 3P1 level of the even mercury isotopes to be 1.486094(8). Resonance was observed in all cases at a frequency of exactly 24 Gc/sec, and magnetic fields near 11430 G. At these high fields the Zeeman energy is of the order of 10-3 of the fine structure separations of the triplet terms of the (nsnp) configuration, and the Δm = ±1 transitions are split by 9.51(7) G for Cd, and by 2.99(7) G for Hg. This splitting represents several linewidths in the case of Hg, and many linewidths in that of Cd. The average field of the two Δm transitions, however, determines gJ, to high precision independent of second-order corrections.

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