Electron-ion collision spectroscopy: Lithium-like xenon ions

被引：18

作者：

Bernhardt, D. ^{[1
,2
,3
]}

Brandau, C. ^{[1
,2
,3
]}

Harman, Z. ^{[2
,3
,4
]}

Kozhuharov, C. ^{[5
]}

Boehm, S. ^{[1
]}

Bosch, F. ^{[5
]}

Fritzsche, S. ^{[6
,7
]}

Jacobi, J. ^{[1
]}

Kieslich, S. ^{[1
]}

Knopp, H. ^{[1
]}

Nolden, F. ^{[5
]}

Shi, W. ^{[1
]}

Stachura, Z. ^{[8
]}

Steck, M. ^{[5
]}

Stoehlker, Th. ^{[5
,6
,9
]}

Schippers, S. ^{[1
]}

Mueller, A. ^{[1
]}

机构：

[1] Univ Giessen, Inst Atom & Mol Phys, D-35392 Giessen, Germany

[2] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany

[3] GSI Helmholtzzentrum Schwerionenforsch, Div Res, D-64291 Darmstadt, Germany

[4] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[5] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany

[6] Helmholtz Inst Jena, D-07743 Jena, Germany

[7] Univ Jena, Fak Phys & Astron, D-07743 Jena, Germany

[8] Inst Fizyki Jadrowej, PL-31342 Krakow, Poland

[9] Univ Jena, Inst Opt & Quantenelektr, D-07743 Jena, Germany

来源：

PHYSICAL REVIEW A | 2015年 / 91卷 / 01期

关键词：

RECOMBINATION RATE COEFFICIENTS; TRANSITION ENERGIES; LAMB SHIFT; NA-LIKE; RESONANCE; STORAGE;

D O I：

10.1103/PhysRevA.91.012710

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The resonant process of dielectronic recombination (DR) has been applied as a spectroscopic tool to investigate intra-L-shell excitations 2s-2p(j) in Li-like Xe-136(51+). The experiments were carried out at the electron cooler of the Experimental Storage Ring of the GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt, Germany. The observed center-of-mass energy range (0-505 eV) covers all resonances associated with the 2s + e -> (2p(1/2)nl(j))(J) and (2p(3/2)nl(j))(J) DR processes. Energies and strengths of isolated 2p(1/2)n and 2p(3/2)n DR-resonance groups were obtained for principal quantum numbers n up to 43 and 36, respectively. The 2s-2p(1/2) and 2s-2p(3/2) excitation energies were deduced to be 119.816(42) eV and 492.174(52) eV. The excitation energies are compared with previous measurements of other groups and with recent QED calculations. In addition, the experimental spectra and extracted resonance strengths are compared with multiconfiguration Dirac-Fock calculations. Measurements and theory are found to be in good agreement with each other.

引用

页数：15

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