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

页码：3050 / 3054

页数：5

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