RADIATIVE DECAY OF TRIPLY EXCITED 2P2NP4,2SO STATES TO THE 1S2PMP P-4, P-2 STATES IN LITHIUM-LIKE IONS

被引:28
作者
DAVIS, BF [1 ]
CHUNG, KT [1 ]
机构
[1] N CAROLINA STATE UNIV, DEPT PHYS, RALEIGH, NC 27695 USA
来源
PHYSICAL REVIEW A | 1990年 / 42卷 / 09期
关键词
D O I
10.1103/PhysRevA.42.5121
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The Rayleigh-Ritz variational method is used with a multiconfiguration- interaction function to obtain the nonrelativistic energies and wave functions of the triply excited 2p2np 4S°(n=2,3,4) and 2p23p 2S°states and also the doubly excited 1s2pmp 4P (m=2,3,4), 1s2p2 2P, [(1s2p)3P,3p]2P, and [(1s2p)1P,3p]2P states for atomic systems with nuclear charges from Z=3 to 10. The relativistic and mass polarization corrections are evaluated via first-order perturbation theory, and the resulting relativistically corrected energies are used to compute transition wavelengths for 2p2np 4,2S°1s2pmp 4,2P. The fine structure of the 1s2pnp 4,2P states is also calculated with first-order perturbation theory. The nonrelativistic wave functions are used to compute the electric-dipole transition probabilities for 2p2np 4,2S°1s2pmp 4,2P; this information is then used to compute the lifetimes for the 2p2np 4,2S°states and the branching ratios for the transitions to the 1s2pmp 4,2P levels. Intermediate-coupling effects for the 2p3 4S°,2D°,2P°and the 1s2p2 4P,2D,2P,2S states are investigated for the case of Z=10 and are shown to be small. Comparisons with experimental wavelength and lifetime measurements are made. © 1990 The American Physical Society.
引用
收藏
页码:5121 / 5131
页数:11
相关论文
共 25 条
[1]   OPTICAL-EMISSION FROM THE (2P2P2P) 4S(0) STATES IN 3-ELECTRON SYSTEMS [J].
AGENTOFT, M ;
ANDERSEN, T ;
CHUNG, KT .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1984, 17 (13) :L433-L438
[2]  
Bethe H. A., 1977, QUANTUM MECHANICS ON, P181
[3]   HIGH-RESOLUTION KLL AUGER-SPECTRA OF MULTIPLY IONIZED OXYGEN PROJECTILES STUDIED BY ZERO-DEGREE ELECTRON-SPECTROSCOPY [J].
BRUCH, R ;
STOLTERFOHT, N ;
DATZ, S ;
MILLER, PD ;
PEPMILLER, PL ;
YAMAZAKI, Y ;
KRAUSE, HF ;
SWENSON, JK ;
CHUNG, KT ;
DAVIS, BF .
PHYSICAL REVIEW A, 1987, 35 (10) :4114-4121
[4]   CONFIGURATION-INTERACTION STUDIES OF TRANSITION ENERGIES AND OSCILLATOR-STRENGTHS FOR LOWEST QUARTET STATES OF NEUTRAL LITHIUM [J].
BUNGE, CF ;
BUNGE, AV .
PHYSICAL REVIEW A, 1978, 17 (03) :822-829
[5]   TRANSITION WAVELENGTH AND FINE-STRUCTURE FOR THE QUARTET STATES OF BE+ [J].
CHUNG, KT ;
DAVIS, BF .
PHYSICAL REVIEW A, 1984, 29 (04) :1871-1877
[6]   FINE-STRUCTURES AND TRANSITION WAVELENGTHS FOR 1S2S2P4P AND 1S2P2P4P OF LITHIUMLIKE IONS [J].
CHUNG, KT .
PHYSICAL REVIEW A, 1984, 29 (02) :682-689
[7]   TRIPLY EXCITED BOUND-STATE OF HE- AND THE ISOELECTRONIC SEQUENCE [J].
CHUNG, KT .
PHYSICAL REVIEW A, 1979, 20 (03) :724-726
[8]   ON THE QUARTET SYSTEM OF B-III [J].
CHUNG, KT ;
BRUCH, R ;
TRABERT, E ;
HECKMANN, PH .
PHYSICA SCRIPTA, 1984, 29 (02) :108-112
[9]  
COHEN ER, 1986, CODATA B, V63
[10]  
COWEN RD, 1981, THEORY ATOMIC STRUCT, P402