POSITRON SCATTERING FROM KRYPTON AND XENON

被引：11

作者：

GIANTURCO, FA ^{[1
]}

DEFAZIO, D ^{[1
]}

机构：

[1] UNIV PERUGIA, DEPT CHEM, I-06100 PERUGIA, ITALY

来源：

PHYSICAL REVIEW A | 1994年 / 50卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.50.4819

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The elastic scattering of positrons from the heaviest noble gases has been formulated by using a parameter-free semiclassical model for the polarization forces in the short- and intermediate-range distances. The exact Coulomb repulsive interaction has been obtained from self-consistent-field wave functions of near-Hartree-Fock quality and the scattering equations have been solved over a broad range of collision energies. The elastic integral cross sections agree well with experiments in spite of the great simplicity of the employed computational model. Angular distributions also compare favorably with available experiments and the relative importance of various second-order corrections is discussed in relation to their bearing on the final results. © 1994 The American Physical Society.

引用

页码：4819 / 4826

页数：8

共 42 条

[1] THE SCHWINGER VARIATIONAL METHOD IN ELECTRON-ATOM AND ELECTRON-MOLECULE SCATTERING-THEORY WITH POLARIZATION [J].

BERMAN, M ;

KALDOR, U .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1981, 14 (20) :3993-4005

[2]

Buckingham A. D., 1967, ADV CHEM PHYS, P107, DOI DOI 10.1002/9780470143582.CH2

[3] 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

[4] EXPERIMENTAL STUDIES OF POSITRONS SCATTERING IN GASES [J].

CHARLTON, M .

REPORTS ON PROGRESS IN PHYSICS, 1985, 48 (06) :737-793

[5]

Clementi E., 1974, Atomic Data and Nuclear Data Tables, V14, P177, DOI 10.1016/S0092-640X(74)80016-1

[6] MEASUREMENT OF DIFFERENTIAL CROSS-SECTIONS FOR THE ELASTIC-SCATTERING OF POSITRONS BY ARGON ATOMS [J].

COLEMAN, PG ;

MCNUTT, JD .

PHYSICAL REVIEW LETTERS, 1979, 42 (17) :1130-1133

[7] THE REPRESENTATION OF LONG RANGE FORCES BY SERIES EXPANSIONS .1. THE DIVERGENCE OF THE SERIES .2. THE COMPLETE PERTURBATION CALCULATION OF LONG RANGE FORCES [J].

DALGARNO, A ;

LEWIS, JT .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION A, 1956, 69 (01) :57-64

[8] A SEMICLASSICAL MODEL FOR POLARIZATION FORCES IN COLLISIONS OF ELECTRONS AND POSITRONS WITH HELIUM-ATOMS [J].

DEFAZIO, D ;

GIANTURCO, FA ;

RODRIGUEZRUIZ, JA ;

TANG, KT ;

TOENNIES, JP .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (02) :303-317

[9] OBSERVATION OF STRUCTURE IN INTERMEDIATE-ENERGY POSITRON-ARGON DIFFERENTIAL ELASTIC-SCATTERING [J].

DOU, L ;

KAUPPILA, WE ;

KWAN, CK ;

STEIN, TS .

PHYSICAL REVIEW LETTERS, 1992, 68 (19) :2913-2916

[10] EVIDENCE FOR RESONANCES AND ABSORPTION EFFECTS IN POSITRON-KRYPTON DIFFERENTIAL-ELASTIC-SCATTERING MEASUREMENTS [J].

DOU, L ;

KAUPPILA, WE ;

KWAN, CK ;

PRZYBYLA, D ;

SMITH, SJ ;

STEIN, TS .

PHYSICAL REVIEW A, 1992, 46 (09) :R5327-R5330

← 1 2 3 4 5 →