ELECTRON-IMPACT DETACHMENT OF D- - NEAR-THRESHOLD BEHAVIOR AND THE NONEXISTENCE OF D2- RESONANCES

被引：74

作者：

ANDERSEN, LH ^{[1
]}

MATHUR, D ^{[1
]}

SCHMIDT, HT ^{[1
]}

VEJBYCHRISTENSEN, L ^{[1
]}

机构：

[1] TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.74.892

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

D- has been stored in the heavy-ion storage ring ASTRID and merged with the electron beam from an electron cooler. The cross section for electron-impact detachment of D- was measured for relative energies from 0 to 20 eV. No evidence is found for the earlier reported resonances that were ascribed to short-lived H2- states. We present a simple classical "reaction-zone" model which essentially reproduces the data except in the region close to the threshold where the cross section is small. © 1995 The American Physical Society.

引用

页码：892 / 895

页数：4

共 24 条

[11] THRESHOLD PHOTODETACHMENT OF H- [J].

LYKKE, KR ;

MURRAY, KK ;

LINEBERGER, WC .

PHYSICAL REVIEW A, 1991, 43 (11) :6104-6107

[12]

MOLLER SP, 1991, 1991 IEEE PART ACC C, P2811

[13] MEASUREMENTS WHICH INDICATE EXISTENCE OF A SECOND SHORT-LIVED STATE OF H2- [J].

PEART, B ;

DOLDER, KT .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1973, 6 (08) :1497-1502

[14] SIMPLEST DOUBLY-CHARGED NEGATIVE-ION - NONEXISTENCE OF H-2- RESONANCES [J].

ROBICHEAUX, F ;

WOOD, RP ;

GREENE, CH .

PHYSICAL REVIEW A, 1994, 49 (03) :1866-1874

[15] RESONANCES AND COMPLEX SCALING - RIGOROUS OVERVIEW [J].

SIMON, B .

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 1978, 14 (04) :529-542

[16] ABSENCE OF POSITIVE EIGENVALUES IN A CLASS OF MULTIPARTICLE QUANTUM SYSTEMS [J].

SIMON, B .

MATHEMATISCHE ANNALEN, 1974, 207 (02) :133-138

[17] SEARCH FOR LONG-LIVED DOUBLY CHARGED ATOMIC NEGATIVE-IONS [J].

SPENCE, D ;

CHUPKA, WA ;

STEVENS, CM .

PHYSICAL REVIEW A, 1982, 26 (01) :654-657

[18] SHORT-LIVED RESONANT STATE OF H-- [J].

TAYLOR, HS .

PHYSICAL REVIEW LETTERS, 1972, 28 (17) :1091-+

[19] IDENTIFICATION OF A SECOND RESONANT STATE OF H2- [J].

THOMAS, LD .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1974, 7 (04) :L97-L98

[20] STRUCTURE OBSERVED DURING DETAILED MEASUREMENTS OF DETACHMENT FROM H- BY ELECTRON IMPACT [J].

WALTON, DS ;

PEART, B ;

DOLDER, K .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1970, 3 (12) :L148-&

← 1 2 3 →