Published July 2006
| Version v1
Journal article
Selective population of the [1s2s] 1S0 and [1s2s] 3S1 states of He-like uranium
Creators
- Rzadkiewicz, J.1, 2
- Stoehlker, Th.3, 2
- Gumberidze, A.3, 2
- Reuschl, R.3, 2
- Spillmann, U.3, 2
- Tashenov, S.3, 2
- Trotsenko, S.3, 2
- Banas, D.4
- Beyer, H. F.2
- Bosch, F.2
- Brandau, C.2
- Ionescu, D. C.2
- Kozhuharov, C.2
- Nandi, T.2
- Dong, C. Z.5
- Fritzsche, S.6
- Surzhykov, A.6
- Gojska, A.7
- Hagmann, S.3
- Sierpowski, D.8
- and others
- 1. The Soltan Institute for Nuclear Studies, 05-400 Swierk (Poland)
- 2. Gesellschaft fuer Schwerionenforschung, Darmstadt (Germany)
- 3. Institut fuer Kernphysik, Universitaet Frankfurt (Germany)
- 4. Institute of Physics, Swietokrzyska Academy, Kielce (Poland)
- 5. Department of Physics, Northwest Normal University, Lanzhou (China)
- 6. Universitaet Kassel (Germany)
- 7. Soltan Institute for Nuclear Studies, Swierk (Poland)
- 8. Institute of Physics, Jagiellonian University, Cracow (Poland)
Description
The formation of the [1s2s] S states in heliumlike uranium (U90+) has been studied in relativistic collisions of initially lithiumlike uranium (U89+) ions with N2 target molecules. By measuring projectile x-ray emission in coincidence with projectile ionization, a strong selectivity for the formation of the [1s2s] S states in heliumlike uranium is observed. This selectivity is found to be unaffected by the subsequent rearrangement of the atomic orbitals involved. By measuring the photon emission associated with the decay of the [1s2s] 1S0 and the [1s2s] 3S1 substates, we obtain for their relative population probabilities a ratio of close to 1. This finding deviates considerably from the assumption of a statistical distribution 2J+1
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 74
- Journal Issue
- 1
- Journal Page Range
- p. 012511-012511.7
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38025893
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- CATIONS; CORRECTIONS; DECAY; DISTRIBUTION; EMISSION SPECTRA; IONIZATION; MOLECULE COLLISIONS; MOLECULES; PHOTON EMISSION; PROBABILITY; RELATIVISTIC RANGE; S STATES; URANIUM; URANIUM IONS; X RADIATION; X-RAY SPECTRA
- Descriptors DEC
- ACTINIDES; CHARGED PARTICLES; COLLISIONS; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; ENERGY LEVELS; ENERGY RANGE; IONIZING RADIATIONS; IONS; METALS; RADIATIONS; SPECTRA
Optional Information
- Notes
- (c) 2006 The American Physical Society