SEMICLASSICAL (GAMMA, 2E) - ABSOLUTE CROSS-SECTIONS FOR K- AT THRESHOLD

被引：6

作者：

CARRUTHERS, DRJ

CROTHERS, DSF

机构：

[1] Dept. of Appl. Math. and Theor. Phys, Queen’s Univ, Belfast

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1991年 / 24卷 / 08期

关键词：

D O I：

10.1088/0953-4075/24/8/001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The uniform semiclassical approximation is employed to calculate the first cross sections for two-electron photodetachment from K- near threshold. Theory gives that the single photon total cross section is sigma(gamma, 2e) = (66.7 x 10(-20))E1.127 cm2 where E is the excess photon energy in eV. This is a factor of approximately four greater than the available experimental result.

引用

页码：L199 / L203

页数：5

共 10 条

[1] ABSOLUTE CROSS-SECTION FOR NEAR-THRESHOLD 2-ELECTRON PHOTO-IONIZATION OF HE- [J].

BAE, YK ;

COGGIOLA, MJ ;

PETERSON, JR .

PHYSICAL REVIEW A, 1983, 28 (06) :3378-3381

[2] NEAR-THRESHOLD MEASUREMENTS OF K- 2-ELECTRON PHOTOIONIZATION CROSS-SECTIONS [J].

BAE, YK ;

PETERSON, JR .

PHYSICAL REVIEW A, 1988, 37 (09) :3254-3258

[3] SEMICLASSICAL (GAMMA,2E) - ABSOLUTE CROSS-SECTIONS FOR HE-(4P5/2-0) AT THRESHOLD [J].

CROTHERS, DSF ;

LENNON, DJ .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1988, 21 (14) :L409-L412

[4] QUANTAL THRESHOLD IONIZATION [J].

CROTHERS, DSF .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1986, 19 (04) :463-483

[5] STUDY OF DOUBLY EXCITED-STATES OF ALKALI NEGATIVE-IONS WITH THE PLUVINAGE METHOD [J].

DULIEU, O ;

LESECH, C .

EUROPHYSICS LETTERS, 1987, 3 (09) :975-981

[6] SEMICLASSICAL (GAMMA, 2E) - ABSOLUTE CROSS-SECTIONS FOR H- AT THRESHOLD [J].

MCCANN, JF ;

CROTHERS, DSF .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1986, 19 (11) :L399-L404

[7]

Morse P. M., 1953, METHODS THEORETICAL

[8] CORRELATED WAVE-FUNCTIONS FOR 2-ELECTRON SYSTEMS USING NEW SCREENED HYDROGEN-LIKE ORBITALS [J].

MOUMENI, A ;

DULIEU, O ;

LESECH, C .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1990, 23 (22) :L739-L745

[9]

PLUVINAGE P, 1951, J PHYS RADIUM, V12, P799

[10] THE THRESHOLD LAW FOR SINGLE IONIZATION OF ATOMS OR IONS BY ELECTRONS [J].

WANNIER, GH .

PHYSICAL REVIEW, 1953, 90 (05) :817-825

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