ELECTRON SCATTERING BY ATOMIC HYDROGEN USING A PSEUDO-STATE EXPANSION .I. ELASTIC SCATTERING

被引:158
作者
BURKE, PG
GALLAHER, DF
GELTMAN, S
机构
[1] Joint Institute for Laboratory Astrophysics, University of Colorado, Boulder, CO
来源
JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS | 1969年 / 2卷 / 11期
关键词
D O I
10.1088/0022-3700/2/11/304
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A modified close-coupling expansion has been developed and applied to calculate elastic electron-hydrogen-atom scattering phase shifts. This expansion into a complete discrete orthonormal basis set is a variant of the more usual close-coupling expansion into eigenstates of the target Hamiltonian. We retain the first few hydrogen-atom eigenstates and augment these terms with pseudo-states chosen, in our particular case, to incorporate fully the ground-state polarizability of the hydrogen atom. The resulting phase shifts are compared, where possible, with those obtained in the most accurate variational calculations available, and they indicate a distinctly improved convergence over those obtained in the close-coupling expansion.
引用
收藏
页码:1142 / &
相关论文
共 22 条
[1]   ELECTRON-HYDROGEN SCATTERING CALCULATION [J].
ARMSTEAD, RL .
PHYSICAL REVIEW, 1968, 171 (01) :91-&
[2]   CORRELATION IN ELASTIC AND INELASTIC S-WAVE SCATTERING OF ELECTRONS BY H AND HE [J].
BURKE, PG ;
TAYLOR, AJ .
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1966, 88 (561P) :549-&
[3]   LOW-ENERGY SCATTERING OF ELECTRONS AND POSITRONS BY HYDROGEN ATOMS [J].
BURKE, PG ;
SMITH, K .
REVIEWS OF MODERN PHYSICS, 1962, 34 (03) :458-&
[4]   ELASTIC SCATTERING OF LOW-ENERGY ELECTRONS BY ATOMIC HYDROGEN [J].
BURKE, PG ;
SCHEY, HM .
PHYSICAL REVIEW, 1962, 126 (01) :147-&
[5]   ON THE THEORY OF ELASTIC COLLISIONS BETWEEN ELECTRONS AND HYDROGEN ATOMS [J].
CASTILLEJO, L ;
PERCIVAL, IC ;
SEATON, MJ .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1960, 254 (1277) :259-272
[6]   EXCITATION OF NEUTRAL ATOMS BY ELECTRON IMPACT [J].
CROTHERS, D ;
MCCARROLL, R .
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1965, 86 (552P) :753-+
[7]   A MODIFICATION OF CLOSE-COUPLING APPROXIMATION FOR E-H SCATTERING ALLOWING FOR LONG-RANGE INTERACTIONS [J].
DAMBURG, R ;
KARULE, E .
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1967, 90 (569P) :637-&
[8]   EXCITATION OF N=2 STATES IN HYDROGEN BY ELECTRON IMPACT [J].
DAMBURG, RJ ;
GELTMAN, S .
PHYSICAL REVIEW LETTERS, 1968, 20 (10) :485-&
[9]  
GAILITIS M, 1965, SOV PHYS JETP-USSR, V20, P107
[10]   2-PARTICLE COLLISIONS .2. COULOMB COLLISIONS IN LABORATORY SYSTEM OF COORDINATES [J].
GRYZINSKI, M .
PHYSICAL REVIEW, 1965, 138 (2A) :A322-+