Precise determination of the 2s1/2-2p1/2 splitting in very heavy lithiumlike ions utilizing dielectronic recombination -: art. no. 073202

被引：126

作者：

Brandau, C ^{[1
]}

Kozhuharov, C

Müller, A

Shi, W

Schippers, S

Bartsch, T

Böhm, S

Böhme, C

Hoffknecht, A

Knopp, H

Grün, N

Scheid, W

Steih, T

Bosch, F

Franzke, B

Mokler, PH

Nolden, F

Steck, M

Stöhlker, T

Stachura, Z

机构：

[1] Univ Giessen, Inst Kernphys, D-35392 Giessen, Germany

[2] Gesell Schwerionenforsch Inst Darmstadt, D-64291 Darmstadt, Germany

[3] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

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

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.91.073202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The 2s(1/2)-2p(1/2) energy splittings DeltaE(L) of the lithiumlike ions Au-197(79)76+, Pb-208(82)79+, and U-239(92)89+ have been measured at the Experimental Storage Ring, utilizing low energy dielectronic recombination. The resonance energies in total 41 different 1s(2) 2p(1/2)nl(j)' (ngreater than or equal to20) autoionizing Rydberg states populated in the dielectronic capture process have been determined. The 2s(1/2)-->2p(1/2) excitation energies have been obtained by extrapolation of these resonance energies to the associated series limits n-->infinity. The combined analysis of the experimental data for all three ions yields DeltaE(L)=216.134(96) eV for Au76+, 230.650(81) eV for Pb79+, and 280.516(99) eV for U89+.

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