DOUBLY EXCITED-STATES POPULATED IN COLLISIONS OF O-8+ IONS WITH HE AND H2 AT 1.24 KEV AMU-1

被引：31

作者：

CHETIOUI, A

MARTIN, F

POLITIS, MF

ROZET, JP

TOUATI, A

BLUMENFELD, L

VERNHET, D

WOHRER, K

STEPHAN, C

BARAT, M

GABORIAUD, MN

LAURENT, H

RONCIN, P

机构：

[1] INST CURIE,PHYS & CHIM SECT,F-75231 PARIS 05,FRANCE

[2] UNIV PARIS 11,COLLIS ATOM & ELECTR LAB,F-91405 ORSAY,FRANCE

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1990年 / 23卷 / 20期

关键词：

D O I：

10.1088/0953-4075/23/20/024

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Coincidence measurements between O6+(3, 3), (3, 4) (or (4, 4)) ions and their emitted X-rays have been performed in double capture collisions between fully stripped O8+ ions and He (or H2) targets at 1.24 keV amu−1. Average ratios of autoionization widths towards different continuum states have been extracted for this measurement and compared with predictions of new Feshbach calculations. A complete set of theoretical partial autoionization widths for the singlet (3, 3), (3, 4) and (4, 4) states of O6+ is also given. In most cases the results exclude a dominant population of high-L states by double capture in contrast with previously reported measurements at higher velocities. © 1990, IOP Publishing Ltd.

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页码：3659 / 3675

页数：17

相关论文

共 32 条

[1] ELECTRON-IMPACT EXCITATION OF HYDROGENIC IONS [J].

ABUSALBI, N ;

CALLAWAY, J .

PHYSICAL REVIEW A, 1981, 24 (05) :2372-2386

[2] POSITION AND WIDTHS OF AUTOIONISING STATES IN THE HELIUM ISOELECTRONIC SEQUENCE ABOVE THE N = 2 CONTINUUM [J].

BACHAU, H .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1984, 17 (09) :1771-1784

[3] COINCIDENT ENERGY GAIN SPECTROSCOPY OF ELECTRON-CAPTURE IN MULTIPLY CHARGED IONS COLLIDING WITH HE, H2 AND HEAVY RARE-GAS TARGETS [J].

BARAT, M ;

GABORIAUD, MN ;

GUILLEMOT, L ;

RONCIN, P ;

LAURENT, H ;

ANDRIAMONJE, S .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1987, 20 (21) :5771-5783

[4]

Bordenave-Montesquieu A., 1976, Atomic Data and Nuclear Data Tables, V17, P157, DOI 10.1016/0092-640X(76)90006-1

[5] ANGULAR MOMENTA DETERMINATION OF N5+(3L3L') CAPTURE STATES IN N7+-HE COLLISIONS [J].

BORDENAVEMONTESQUIEU, A ;

BENOITCATTIN, P ;

BOUDJEMA, M ;

GLEIZES, A ;

BACHAU, H .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1987, 20 (21) :L695-L703

[6] ROLE OF ANGULAR-CORRELATIONS AND TOTAL ANGULAR-MOMENTUM ON PARTIAL AUTOIONISATION WIDTHS OF O-6+ (3,3) AND (4,4) STATES [J].

CHETIOUI, A ;

BACHAU, H ;

WOHRER, K ;

VERNHET, D ;

BLUMENFELD, L ;

POLITIS, MF ;

ROZET, JP ;

TOUATI, A ;

STEPHAN, C .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1989, 22 (18) :2865-2874

[7] A UNIFIED THEORY OF NUCLEAR REACTIONS .2. [J].

FESHBACH, H .

ANNALS OF PHYSICS, 1962, 19 (02) :287-313

[8] ATOMIC-ORBITAL-EXPANSION STUDIES OF ELECTRON-TRANSFER IN BARE-NUCLEUS Z(Z=2,4-8)-HYDROGEN-ATOM COLLISIONS [J].

FRITSCH, W ;

LIN, CD .

PHYSICAL REVIEW A, 1984, 29 (06) :3039-3051

[9]

HAREL C, 1986, COMMUNICATION

[10] COMPARISON OF DOUBLY-EXCITED HELIUM ENERGY-LEVELS, ISOELECTRONIC SERIES, AUTOIONIZATION LIFETIMES, AND GROUP-THEORETICAL CONFIGURATION-MIXING PREDICTIONS WITH LARGE-CONFIGURATION-INTERACTION CALCULATIONS AND EXPERIMENTAL SPECTRA [J].

HERRICK, DR ;

SINANOGLU, O .

PHYSICAL REVIEW A, 1975, 11 (01) :97-110

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