Hyperfine quenching and measurement of the 2 [sup 3][ital P][sub 0]--2 [sup 3][ital P][sub 1] fine-structure splitting in heliumlike silver (Ag[sup 45+])

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.R2454· OSTI ID:6653154

Birkett, B B ^[1]; Briand, J; Charles, P ^[2]; Dietrich, D D ^[3]; Finlayson, K ^[4]; Indelicato, P ^[2]; Liesen, D ^[4]; Marrus, R ^[1]; Simionovici, A ^[5]

---

1. Department of Physics, University of California, Berkeley, California 94720 (United States)
2. Laboratoire de Physique Atomique et Nucleaire (LPAN), Institut de Radium, Universite Pierre et Marie Curie, T12, Boite 93, 75252 Paris, CEDEX 05 (France)
3. Lawrence Livermore National Laboratory, L-296, P.O. Box 808, Livermore, California 94550 (United States)
4. Gesellschaft fuer Schwerionenforschung m.b.H., 6100 Darmstadt (Germany)
5. Laboratoire Grenoblois de Recherches sur les Ions, les Plasmas et la Physique Atomique (LAGRIPPA), Centre d'E

The hyperfine-quenched transition 2 [sup 3][ital P][sub 0--]1 [sup 1][ital S][sub 0] has been observed in heliumlike silver (Ag[sup 45+]) in the two isotopes [sup 107]Ag and [sup 109]Ag. The lifetime for the transition has been measured for each isotope and found to be [tau][sub 0](107)=3.98(37)[times]10[sup [minus]12] sec and [tau][sub 0](109)=2.84(32)[times]10[sup [minus]12] sec. From the measured lifetimes a value is inferred for the absolute value of the 2 [sup 3][ital P][sub 0--]2 [sup 3][ital P][sub 1] fine-structure splitting [vert bar][Delta][ital E][sub 0[minus]1][vert bar] in Ag[sup 45+] with the result [vert bar][Delta][ital E][sub 0[minus]1][vert bar]=0.79(04) eV, where the uncertainty is the experimental uncertainty taken at the 1[sigma] confidence level. This result is compared with calculations based on the multiconfigurational Dirac-Fock method, the unified method, and recent results from the relativistic configuration-interaction method.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6653154
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664400* -- Experimentally Derived Information on Atomic & Molecular Properties-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
CHARGED PARTICLES
ENERGY LEVELS
FINE STRUCTURE
IONS
ISOTOPES
LIFETIME
MULTICHARGED IONS
P STATES
QUENCHING
SILVER IONS
TIME-OF-FLIGHT METHOD