Photodetachment study of the 1s3s4s(4)S resonance in He-

被引：17
|
作者：
Klinkmuller, AE
Haeffler, G
Hanstorp, D
Kiyan, IY
Berzinsh, U
Ingram, CW
Pegg, DJ
Peterson, JR
机构：
[1] CHALMERS UNIV TECHNOL, S-41296 GOTHENBURG, SWEDEN
[2] UNIV TENNESSEE, DEPT PHYS, KNOXVILLE, TN 37996 USA
[3] SRI INT, DEPT MOL PHYS, MENLO PK, CA 94025 USA
[4] RUSSIAN ACAD SCI, INST GEN PHYS, MOSCOW 117942, RUSSIA
[5] LATVIAN STATE UNIV, INST ATOM PHYS & SPECT, LV-1586 RIGA, LATVIA
[6] UNIV VIRGINIA, DEPT PHYS, JESSE W BEAMS LAB PHYS, CHARLOTTESVILLE, VA 22901 USA
来源：
PHYSICAL REVIEW A | 1997年 / 56卷 / 04期
关键词：
D O I：
10.1103/PhysRevA.56.2788
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A Feshbach resonance associated with the 1s3s4s(4)S state of He- has been observed in the He(1s2s(3)S) + e(-) (epsilon s) partial photodetachment cross section. The residual He(1s2s(3)S) atoms were resonantly ionized and the resulting He+ ions were detected in the presence of a small background. A collinear laser-ion beam apparatus was used to attain both high resolution and sensitivity. We measured a resonance energy E-r = 2.959 255(7) eV and a width Gamma = 0.19(3) meV, in agreement with a recent calculation.
引用
收藏
页码：2788 / 2791
页数：4
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