Angle-resolved photoelectron spectrometry studies of the autoionization of the 2s22p 2P triply excited state of atomic lithium:: Experimental results and R-matrix calculations

被引:33
作者
Diehl, S
Cubaynes, D
Zhou, HL
VoKy, L
Wuilleumier, FJ
Kennedy, ET
Bizau, JM
Manson, ST
Morgan, TJ
Blancard, C
Berrah, N
Bozek, J
机构
[1] Univ Paris Sud, Lab Spect Atom & Ion, UMR 8624 CNRS, F-91405 Orsay, France
[2] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA
[3] Observ Cote Azur, F-06304 Nice, France
[4] Dublin City Univ, Sch Phys Sci, Dublin 9, Ireland
[5] Wesleyan Univ, Dept Phys, Middletown, CT 06459 USA
[6] CEA, DAM, DPTA, F-91680 Bruyeres Le Chatel, France
[7] Western Michigan Univ, Dept Phys, Kalamazoo, MI USA
[8] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Lab, Berkeley, CA USA
关键词
D O I
10.1103/PhysRevLett.84.1677
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have measured the angle-resolved energy dependence of the electrons emitted over the energy range of the triply excited 2s(2)2p P-2 lithium resonance using synchrotron radiation. We have also calculated the behavior of the angular distribution parameter beta using the R-matrix approximation. Experimental and theoretical results are in good agreement and show deep minima in the 1s2p P-1,P-3 ionic channels, The energy at which the minima occur does not coincide with the resonance energy, but is shifted towards higher energy.
引用
收藏
页码:1677 / 1680
页数:4
相关论文
共 21 条
[1]   Photoexcitation of hollow lithium with completely empty K and L shells [J].
Azuma, Y ;
Koike, F ;
Cooper, JW ;
Nagata, T ;
Kutluk, G ;
Shigemasa, E ;
Wehlitz, R ;
Sellin, IA .
PHYSICAL REVIEW LETTERS, 1997, 79 (13) :2419-2422
[2]  
AZUMA Y, 1995, PHYS REV LETT, V74, P3770
[3]   High P-2(0) resonances of a triply excited lithium atom [J].
Chung, KT ;
Gou, BC .
PHYSICAL REVIEW A, 1996, 53 (04) :2189-2193
[4]  
CODING K, 1980, J PHYS B ATOM MOL PH, V13, pL693
[5]   First photoexcitation measurements and R-matrix calculations of even-parity hollow states in laser-excited lithium atoms [J].
Cubaynes, D ;
Diehl, S ;
Journel, L ;
Rouvellou, B ;
Bizau, JM ;
AlMoussalami, S ;
Wuilleumier, FJ ;
Berrah, N ;
VoKy, L ;
Faucher, P ;
Hibbert, A ;
Blancard, C ;
Kennedy, E ;
Morgan, TJ ;
Bozek, J ;
Schlachter, AS .
PHYSICAL REVIEW LETTERS, 1996, 77 (11) :2194-2197
[6]  
DEHMER JL, 1987, HDB SYNCHROTRON RAD, V2, P272
[7]   Photoelectron spectroscopy measurements and theoretical calculations of the lowest doubly hollow lithium state [J].
Diehl, S ;
Cubaynes, D ;
Chung, KT ;
Wuilleumier, FJ ;
Kennedy, ET ;
Bizau, JM ;
Journel, L ;
Blancard, C ;
VoKy, L ;
Faucher, P ;
Hibbert, A ;
Berrah, N ;
Morgan, TJ ;
Bozek, J ;
Schlachter, AS .
PHYSICAL REVIEW A, 1997, 56 (02) :R1071-R1074
[8]   High resolution measurements of partial photoionization cross sections in hollow lithium: A critical comparison with advanced many-body calculations [J].
Diehl, S ;
Cubaynes, D ;
Bizau, JM ;
Journel, L ;
Rouvellou, B ;
Al Moussalami, S ;
Wuilleumier, FJ ;
Kennedy, ET ;
Berrah, N ;
Blancard, C ;
Morgan, TJ ;
Bozek, J ;
Schlachter, AS ;
VoKy, L ;
Faucher, P ;
Hibbert, A .
PHYSICAL REVIEW LETTERS, 1996, 76 (21) :3915-3918
[9]   PARITY UNFAVOREDNESS AND DISTRIBUTION OF PHOTOFRAGMENTS [J].
DILL, D ;
FANO, U .
PHYSICAL REVIEW LETTERS, 1972, 29 (18) :1203-&
[10]   LINE PROFILES IN FAR-UV ABSORPTION SPECTRA OF RARE GASES [J].
FANO, U ;
COOPER, JW .
PHYSICAL REVIEW, 1965, 137 (5A) :1364-&