Nuclear excitation by electron capture followed by fast x-ray emission

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dc.creatorPálffy, Adriana
dc.creatorHarman, Zoltán
dc.creatorKozhuharov, Christophor
dc.creatorBrandau, Carsten
dc.creatorKeitel, Christoph H.
dc.creatorScheid, Werner
dc.creatorStöhlker, Thomas
dc.date2008-03-19
dc.date.accessioned2026-07-07T11:49:13Z
dc.date.available2026-07-07T11:49:13Z
dc.descriptionThe resonance strength of the two-step process of nuclear excitation by electron capture followed by $γ$ decay of the nucleus can be significantly increased in highly charged ions if the resonant capture proceeds via an excited electronic state with subsequent fast x-ray emission. For fully ionized $^{238}_{92}\mathrm{U}$ and $^{232}_{90}\mathrm{Th}$, the {x-ray} decay stabilizes the system against internal conversion of the captured electron, with an increase of both nuclear lifetimes and resonance strengths of up to two orders of magnitude compared with the case when occupied atomic orbitals prevent the x-ray de-excitation. Applications of this effect to the measurement of the not yet experimentally observed nuclear excitation by electron capture and to dense astrophysical plasmas are discussed.
dc.description12 pages, 1 figure, 2 tables
dc.identifierhttps://arxiv.org/abs/0803.2858
dc.identifierhttp://arxiv.org/abs/0803.2858
dc.identifierPhys.Lett.B661:330-334,2008
dc.identifierdoi:10.1016/j.physletb.2008.02.027
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203159
dc.subjectNuclear Theory
dc.subjectAtomic Physics
dc.titleNuclear excitation by electron capture followed by fast x-ray emission
dc.typetext

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