PROBING ELECTRON CORRELATIONS IN DOUBLE PHOTOIONIZATION OF HE AT INTERMEDIATE ENERGIES

被引:35
作者
BERRAH, N
HEISER, F
WEHLITZ, R
LEVIN, J
WHITFIELD, SB
VIEFHAUS, J
SELLIN, IA
BECKER, U
机构
[1] WESTERN MICHIGAN UNIV, DEPT PHYS, KALAMAZOO, MI 49008 USA
[2] UNIV TENNESSEE, DEPT PHYS, KNOXVILLE, TN 37996 USA
[3] NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA
[4] OAK RIDGE NATL LAB, OAK RIDGE, TN 37891 USA
来源
PHYSICAL REVIEW A | 1993年 / 48卷 / 03期
关键词
D O I
10.1103/PhysRevA.48.R1733
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The ratio of double-to-single ionization of He has been measured between 280 and 1210 eV to investigate its behavior in this partially unexplored region. These measurements, compared with the most recent theories of Pan and Kelly (private communication) and of Hino [Phys. Rev. A 47, 4845 (1993)], show the importance of including not only ground-state but also final-state correlations, in contrast to the high-energy behavior discussed by Dalgarno and Sadeghpour [Phys. Rev. A 46, R3591 (1992)] where consideration of final-state correlations proves inessential. Our intermediate-energy results also appear to indicate the importance of including higher-order effects in the theory.
引用
收藏
页码:R1733 / R1736
页数:4
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