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  Towards a measurement of the 2s2p 3P0 → 2s2 1S0 E1M1 two photon transition rate in Be-like xenon ions

Bernhardt, D., Brandau, C., Kozhuharov, C., Müller, A., Schippers, S., Böhm, S., et al. (2012). Towards a measurement of the 2s2p 3P0 → 2s2 1S0 E1M1 two photon transition rate in Be-like xenon ions. Journal of Physics: Conference Series, 388(1): 012007.

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Bernhardt, D., Author
Brandau, C., Author
Kozhuharov, C., Author
Müller, A., Author
Schippers, S., Author
Böhm, S., Author
Bosch, F., Author
Jacobi, J., Author
Kieslich, S., Author
Knopp, H., Author
Mokler, P. H.1, Author           
Nolden, F., Author
Shi, W., Author
Stachura, Z., Author
Steck, M., Author
Stöhlker, T., Author
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society, ou_904547              

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 Abstract: Dielectronic recombination (DR) of Be-like 136Xe50+ was measured by employing the electron-ion merged-beam technique at the storage ring ESR of GSI in Darmstadt, Germany. We present results covering the center-of-mass energy range 0 − 4 eV. In addition to Rydberg series of resonances associated with ground-state intra L-shell excitations, resonances were found which are formed during DR of initially metastable 136Xe50+(2s2p 3P0) parent ions. This state is the first excited state and is long lived because the J=0 → J=0 transition and the absence of nuclear spin make the rare E1M1 two-photon transition the lowest-order decay channel. Future measurements which will monitor the strength of the resonances as function of storage time may be exploited for a measurement of the E1M1 two photon transition rate.

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Language(s): eng - English
 Dates: 2012
 Publication Status: Issued
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Title: XXVII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2011)
Place of Event: Belfast, Northern Ireland, UK
Start-/End Date: 2011-07-27 - 2011-08-02

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Title: Journal of Physics: Conference Series
Source Genre: Journal
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Publ. Info: Bristol : IOP Publ.
Pages: - Volume / Issue: 388 (1) Sequence Number: 012007 Start / End Page: - Identifier: ISSN: 1742-6588
CoNE: https://pure.mpg.de/cone/journals/resource/111097776606042