The ionization of molecules near threshold

被引:111
作者
Bardsley, J. N. [1 ]
机构
[1] Univ Manchester, Dept Theoret Phys, Manchester M13 9PL, Lancs, England
关键词
D O I
10.1016/0009-2614(67)85059-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The observed structure in the ionization cross section just above the threshold has been attributed to the formation of auto-ionizing Rydberg states. The calculation of the auto-ionization rates is discussed in terms of the breakdown of the Born-Oppenheimer approximation. Three aspects are examined qualitatively, the variation of decay rate with principal quantum number, the magnitude of the decay rate, and the competition between auto-ionization and pre-dissociation. It is found that the states are all narrow. and. that the widths decrease with increasing principal quantum number.
引用
收藏
页码:229 / 232
页数:4
相关论文
共 10 条
[1]  
BARDSLEY JN, 1967, 5 INT C PHYS EL AT C
[2]   DISSOCIATIVE RECOMBINATION [J].
BATES, DR .
PHYSICAL REVIEW, 1950, 78 (04) :492-493
[3]  
BATES DR, 1962, ATOMIC MOL PROCESSES, P245
[4]   IONIZATION OF MOLECULES AT LOW ENERGIES [J].
BERRY, RS .
JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (04) :1228-&
[5]   The absorption spectrum of hydrogen [J].
Beutler, H. ;
Juenger, H. -O .
ZEITSCHRIFT FUR PHYSIK, 1936, 100 (01) :80-94
[6]   MASS-SPECTROMETRIC STUDY OF PHOTOIONIZATION .2. H2 HD AND D2 [J].
DIBELER, VH ;
REESE, RM ;
KRAUSS, M .
JOURNAL OF CHEMICAL PHYSICS, 1965, 42 (06) :2045-&
[7]   CALCULATIONS ON PIUNP RYDBERG TERMS OF NITROGEN MOLECULE [J].
DUNCAN, ABF ;
DAMIANI, A .
JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (04) :1245-&
[8]   ETUDE THEORIQUE DES PERTURBATIONS HOMOGENES .I. APPLICATION AUX INTERACTIONS PI-PI ET DELTA-DELTA DE NO [J].
FELENBOK, P ;
LEFEBVRE.H .
CANADIAN JOURNAL OF PHYSICS, 1966, 44 (08) :1677-&
[9]   ELECTRON LOSS PROCESS IN THE HYDROGEN AFTERGLOW [J].
PERSSON, KB ;
BROWN, SC .
PHYSICAL REVIEW, 1955, 100 (02) :729-733
[10]  
POPOV NA, 1960, SOV PHYS-TECH PHYS, V4, P764