CONVERGENT CLOSE-COUPLING METHOD FOR ELECTRON-SCATTERING ON HELIUM

被引：21

作者：

BRAY, I ^{[1
]}

FURSA, DV ^{[1
]}

MCCARTHY, IE ^{[1
]}

机构：

[1] FLINDERS UNIV S AUSTRALIA,CTR ELECTR STRUCT MAT,GPO BOX 2100,ADELAIDE 5001,AUSTRALIA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1994年 / 27卷 / 14期

关键词：

D O I：

10.1088/0953-4075/27/14/019

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We apply the convergent close-coupling method to the calculation of electron scattering on the ground state of helium at a projectile energy of 30 eV. At this energy convergence in the differential cross sections for the n = 1, 2, 3 transitions is obtained by the use of 62 coupled target states. The target stat- - obtained by diagonalizing the target Hamiltonian in a two-electron Laguerre basis. resulting in square integrable negative and positive energy states. The calculated differential cross sections are in excellent quantitative agreement with experiment. No other available theory is able to achieve this to date.

引用

页码：L421 / L425

页数：5

共 16 条

[1] CONVERGENT CLOSE-COUPLING CALCULATIONS OF ELECTRON-HYDROGEN SCATTERING [J].

BRAY, I ;

STELBOVICS, AT .

PHYSICAL REVIEW A, 1992, 46 (11) :6995-7011

[2] CALCULATION OF THE TOTAL IONIZATION CROSS-SECTION AND SPIN ASYMMETRY IN ELECTRON-HYDROGEN SCATTERING FROM THRESHOLD TO 500 EV [J].

BRAY, I ;

STELBOVICS, AT .

PHYSICAL REVIEW LETTERS, 1993, 70 (06) :746-749

[3] CALCULATION OF ELECTRON-SCATTERING ON THE HE+ ION [J].

BRAY, I ;

MCCARTHY, IE ;

WIGLEY, J ;

STELBOVICS, AT .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1993, 26 (23) :L831-L836

[4] EXPLICIT DEMONSTRATION OF THE CONVERGENCE OF THE CLOSE-COUPLING METHOD FOR A COULOMB 3-BODY PROBLEM [J].

BRAY, I ;

STELBOVICS, AT .

PHYSICAL REVIEW LETTERS, 1992, 69 (01) :53-56

[5]

BRAY I, 1994, PHY SREV A, V49, P106

[6]

BRAY I, 1994, UNPUB PHYS REV A

[7] ELASTIC ELECTRON-SCATTERING FROM HELIUM - ABSOLUTE EXPERIMENTAL CROSS-SECTIONS, THEORY AND DERIVED INTERACTION POTENTIALS [J].

BRUNGER, MJ ;

BUCKMAN, SJ ;

ALLEN, LJ ;

MCCARTHY, IE ;

RATNAVELU, K .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1992, 25 (08) :1823-1838

[8] DIFFERENTIAL CROSS-SECTIONS FOR ELASTIC AND INELASTIC N=2 EXCITATION OF GROUND-STATE HELIUM AT 29.6 AND 40.1 EV [J].

BRUNGER, MJ ;

MCCARTHY, IE ;

RATNAVELU, K ;

TEUBNER, PJO ;

WEIGOLD, AM ;

ZHOU, Y ;

ALLEN, LJ .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1990, 23 (08) :1325-1335

[9] ELECTRON-IMPACT EXCITATION OF THE N 1P LEVELS OF HELIUM - THEORY AND EXPERIMENT [J].

CARTWRIGHT, DC ;

CSANAK, G ;

TRAJMAR, S ;

PHYSICAL REVIEW A, 1992, 45 (03) :1602-1624

[10] EXPERIMENTAL AND (FIRST-ORDER MANY-BODY) THEORETICAL DIFFERENTIAL AND INTEGRAL CROSS-SECTIONS FOR EXCITATION OF N=3 STATES OF HE BY ELECTRON-IMPACT AT 29.2 AND 39.7 EV [J].

CHUTJIAN, A ;

THOMAS, LD .

PHYSICAL REVIEW A, 1975, 11 (05) :1583-1595

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