Two-photon E1M1 decay of 2 3P0 states in heavy heliumlike ions

Details Two-photon E1M1 decay of 2 3P0 states in heavy heliumlike ions Two-photon E1M1 decay of 2 3P0 states in heavy heliumlike ions

2002-09-23

arxiv.org/abs/physics/0209086v1

Phys. Rev. A 66, 062507, 1-5 (2002)

Physics

Atomic Physics

6 pages, 3 figures, 3 tables

Scientific paper

10.1103/PhysRevA.66.062507

Two-photon E1M1 transition rates are evaluated for heliumlike ions with nuclear charges in the range Z = 50-94. The two-photon rates modify previously published lifetimes/transition rates of 2 3P0 states. For isotopes with nuclear spin I not equal 0, where hyperfine quenching dominates the 2 3P0 decay, two-photon contributions are significant; for example, in heliumlike 187 Os the two-photon correction is 3% of the total rate. For isotopes with I= 0, where the 2 3P0 decay is unquenched, the E1M1 corrections are even more important reaching 60% for Z=94. Therefore, to aid in the interpretation of experiments on hyperfine quenching in heliumlike ions and to provide a more complete database for unquenched transitions, a knowledge of E1M1 rates is important.

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