ELECTRON-CAPTURE IN HE2+ COLLISIONS WITH ALIGNED NA-ASTERISK (3P) ATOMS

被引：44

作者：

AUMAYR, F ^{[1
]}

GIELER, M ^{[1
]}

SCHWEINZER, J ^{[1
]}

WINTER, H ^{[1
]}

HANSEN, JP ^{[1
]}

机构：

[1] FYS INST,N-5000 BERGEN,NORWAY

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.68.3277

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

State-selective single-electron capture in slow (0.5-3 keV/amu) collisions of He2+ with laser-excited Na*(3p) atoms has been studied experimentally by means of translational energy spectroscopy, and theoretically by 38-state atomic orbital (AO) close-coupling calculations. The initial orbital alignment of the Na*(3p) state has been controlled via polarization of the exciting laser light. Electron capture into the dominant He+ (n = 4) state is strongly favored for linear light polarization perpendicular to the He2+ beam. The impact energy dependence of the observed alignment behavior can be quantitatively explained by the AO calculations.

引用

收藏

页码：3277 / 3280

页数：4

相关论文

共 20 条

[11]

FRITSCH W, COMMUNICATION

[12] LASER ENHANCED L-ALPHA EMISSION FROM (50EV-15KEV) H+-NA COLLISIONS [J].

GIELER, M ;

AUMAYR, F ;

HUTTENEDER, M ;

WINTER, H .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1991, 24 (20) :4419-4429

[13] ANGULAR-MOMENTUM TRANSFER AND CHARGE CLOUD ALIGNMENT IN ATOMIC-COLLISIONS - INTUITIVE CONCEPTS, EXPERIMENTAL-OBSERVATIONS AND SEMICLASSICAL MODELS [J].

HERTEL, IV ;

SCHMIDT, H ;

BAHRING, A ;

MEYER, E .

REPORTS ON PROGRESS IN PHYSICS, 1985, 48 (03) :375-414

[14]

HERTEL IV, 1977, ADV ATOM MOL PHYS, V13, P113

[15] PROPENSITY RULES FOR ORIENTATION IN SINGLY-CHARGED ION-ATOM COLLISIONS [J].

NIELSEN, SE ;

HANSEN, JP ;

DUBOIS, A .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1990, 23 (15) :2595-2612

[16] WAVEFUNCTIONS AND PSEUDOPOTENTIAL FOR SODIUM ATOMS [J].

RAPP, D ;

CHANG, CM .

JOURNAL OF CHEMICAL PHYSICS, 1973, 58 (06) :2657-2657

[17] COLLISION SPECTROSCOPY WITH ALIGNED AND ORIENTED ATOMS .3. EFFECTS OF INITIAL ORBITAL ALIGNMENT ON H+-NA(3P) CHARGE-TRANSFER [J].

RICHTER, C ;

DOWEK, D ;

HOUVER, JC ;

ANDERSEN, N .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1990, 23 (21) :3925-3932

[18] COLLISION SPECTROSCOPY WITH ALIGNED AND ORIENTED ATOMS .1. CHARGE-TRANSFER IN H+-NA(3S,3P) COLLISIONS [J].

ROYER, T ;

DOWEK, D ;

HOUVER, JC ;

POMMIER, J ;

ANDERSEN, N .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1988, 10 (01) :45-57

[19] SINGLE ELECTRON-CAPTURE FROM ALKALI ATOMS BY SLOW DOUBLY CHARGED IONS .1. HE2+ (0.5-6KEV)-LI, NA, K - ONE-ELECTRON PROCESSES [J].

SCHWEINZER, J ;

WINTER, H .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1990, 23 (21) :3881-3898

[20] ALIGNMENT AND ORIENTATION EFFECTS IN RESONANT CHARGE-EXCHANGE FROM LASER-EXCITED NA-STAR-(3P) [J].

WITTE, R ;

CAMPBELL, EEB ;

RICHTER, C ;

SCHMIDT, H ;

HERTEL, IV .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1987, 5 (02) :101-111