STOPPING POWER OF AN ELECTRON-GAS FOR ANTIPROTONS AT INTERMEDIATE VELOCITIES

被引：11
|
作者：
NAGY, I [1 ]
ECHENIQUE, PM [1 ]
机构：
[1] UNIV BASQUE COUNTRY, FAC QUIM, DEPT FIS, E-20080 SAN SEBASTIAN, SPAIN
来源：
PHYSICAL REVIEW A | 1993年 / 47卷 / 04期
关键词：
D O I：
10.1103/PhysRevA.47.3050
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The stopping power of antiprotons moving at energies up to 400 keV through a uniform zero-temperature electron gas is calculated within the framework of the kinetic theory. The momentum-transfer cross section required is determined with the aid of a parametric velocity-dependent scattering potential. A nonperturbative constraint, provided by the nuclear-cusp condition, is used to fix the parameter value. A comparison with the result of a quadratic-response-function approach is made. The calculated stopping powers are in good agreement with recent experimental predictions.
引用
收藏
页码：3050 / 3054
页数：5
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