3-BODY FINAL-STATE MOMENTUM DISTRIBUTIONS FOR SWIFT H+ AND HE2+ ON HE COLLISIONS

被引：41

作者：

DORNER, R

MERGEL, V

ZHAOYUAN, L

ULLRICH, J

SPIELBERGER, L

OLSON, RE

SCHMIDTBOCKING, H

机构：

[1] LANZHOU UNIV,LANZHOU 730000,PEOPLES R CHINA

[2] GSI DARMSTADT,D-64291 DARMSTADT,GERMANY

[3] UNIV MISSOURI,DEPT PHYS,ROLLA,MO 65401

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1995年 / 28卷 / 03期

关键词：

D O I：

10.1088/0953-4075/28/3/014

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The transverse and longitudinal momentum distributions of He+ ions produced by 0.25-1 MeV u(-1) H+ and He2+ impact have been measured using a precooled supersonic gas jet target (cold-target recoil ion-momentum spectroscopy-COLTRIMS). The transverse momentum of the recoil ions is mainly determined by the impact parameter. In the longitudinal direction the recoil ions are slightly backwardly directed. The width of the longitudinal momentum distribution is close to the electron momentum distribution in the initial state. This distribution gets much broader for larger transverse momentum transfer (i.e. smaller impact parameters). The experimental results are in good agreement with nCTMC calculations.

引用

页码：435 / 444

页数：10

共 29 条

[1] Q-VALUE MEASUREMENTS IN CHARGE-TRANSFER COLLISIONS OF HIGHLY CHARGED IONS WITH ATOMS BY RECOIL LONGITUDINAL MOMENTUM SPECTROSCOPY [J].