dc.publisher: IOP Publishing
citation_publication_date: 2012-11-05
citation_author_institution: Institut für Atom- und Molekülphysik, Justus-Liebig-Universität, 35392 Giessen, Germany
citation_title: Towards a measurement of the 2s2p 3P0 ? 2s2 1S0 E1M1 two photon transition rate in Be-like xenon ions
citation_publisher: IOP Publishing
citation_journal_title: Journal of Physics: Conference Series
dc.format: text/html
description: 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.
title: Towards a measurement of the 2s2p 3P0 ? 2s2 1S0 E1M1 two photon transition rate in Be-like xenon ions - Abstract - Journal of Physics: Conference Series - IOPscience
citation_issn: 1742-6596
dc.type: Text
dc:title: Towards a measurement of the 2s2p 3P0 ? 2s2 1S0 E1M1 two photon transition rate in Be-like xenon ions - Abstract - Journal of Physics: Conference Series - IOPscience
citation_language: en
dc.creator: D Bernhardt
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dc.description: 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.
citation_journal_abbrev: J. Phys.: Conf. Ser.
citation_author: D Bernhardt
citation_abstract_html_url: http://iopscience.iop.org/1742-6596/388/1/012007
dc.date: 2012-11-05
citation_issue: 1
citation_firstpage: 012007
citation_doi: 10.1088/1742-6596/388/1/012007
dc.title: Towards a measurement of the 2s2p 3P0 ? 2s2 1S0 E1M1 two photon transition rate in Be-like xenon ions
dc.identifier: 10.1088/1742-6596/388/1/012007
citation_volume: 388
dc.language: en