High-precision cross sections for low-energy electron-atom collisions

被引:0
作者
Bartschat, Klaus [1 ]
Zatsarinny, Oleg [1 ]
机构
[1] Drake Univ, Dept Phys & Astron, Des Moines, IA 50311 USA
来源
ATOMIC AND MOLECULAR DATA AND THEIR APPLICATIONS | 2007年 / 901卷
基金
美国国家科学基金会;
关键词
electron impact; cross sections; atoms; close-coupling; R-matrix;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We describe a recently developed B-spline R-matrix method for electron and photon collisions with atoms and ions. Using non-orthogonal sets of orbitals to construct the target description and to represent the scattering functions, this implementation of the close-coupling approach allows us to employ highly correlated target wavefunctions with relatively small configuration expansions. Example results from recent applications of the method for accurate calculations of low-energy electron scattering from He, Zn, Ne, At, Xe, and Fe+ are presented.
引用
收藏
页码:117 / +
页数:2
相关论文
共 33 条
[1]   Near-threshold absolute angle-differential cross sections for electron-impact excitation of argon and xenon [J].
Allan, M. ;
Zatsarinny, O. ;
Bartschat, K. .
PHYSICAL REVIEW A, 2006, 74 (03)
[2]  
ALLAN M, 2005, J PHYS B ATOM MOL PH, V39, pL139
[3]   Applications of B-splines in atomic and molecular physics [J].
Bachau, H ;
Cormier, E ;
Decleva, P ;
Hansen, JE ;
Martín, F .
REPORTS ON PROGRESS IN PHYSICS, 2001, 64 (12) :1815-1943
[4]   Electron-atom scattering at low and intermediate energies using a pseudo-state R-matrix basis [J].
Bartschat, K ;
Hudson, ET ;
Scott, MP ;
Burke, PG ;
Burke, VM .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1996, 29 (01) :115-123
[5]  
Bartschat K, 2002, AIP CONF PROC, V636, P192, DOI 10.1063/1.1516336
[6]   Electron-impact excitation of molybdenum from the (4d55s)a 7S ground state [J].
Bartschat, K ;
Dasgupta, A ;
Giuliani, JL .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2002, 35 (13) :2899-2909
[7]   The R-matrix with pseudo-states method: Theory and applications to electron scattering and photoionization [J].
Bartschat, K .
COMPUTER PHYSICS COMMUNICATIONS, 1998, 114 (1-3) :168-182
[8]   RMATRX1 - BELFAST ATOMIC R-MATRIX CODES [J].
BERRINGTON, KA ;
EISSNER, WB ;
NORRINGTON, PH .
COMPUTER PHYSICS COMMUNICATIONS, 1995, 92 (2-3) :290-420
[9]   Low-lying resonances in electron-neon scattering:: Measurements at 4-meV resolution and comparison with theory -: art. no. 012704 [J].
Bömmels, J ;
Franz, K ;
Hoffmann, TH ;
Gopalan, A ;
Zatsarinny, O ;
Bartschat, K ;
Ruf, MW ;
Hotop, H .
PHYSICAL REVIEW A, 2005, 71 (01)
[10]  
Bray I, 2000, AIP CONF PROC, V543, P178, DOI 10.1063/1.1336278