STOPPING POWER OF AN ELECTRON-GAS FOR A SLOW ANTIPROTON

被引：20

作者：

NAGY, I ^{[1
]}

APAGYI, B ^{[1
]}

LADANYI, K ^{[1
]}

机构：

[1] EOTVOS LORAND UNIV, INST THEORET PHYS, H-1088 BUDAPEST, HUNGARY

来源：

PHYSICAL REVIEW A | 1990年 / 42卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.42.1806

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The screening of a slow antiproton in an electron gas is discussed as an analogy of dielectric response formulation. A simple parametric form of the dielectric function is proposed that leads to analytic expressions for the effective potential and induced hole density. The parameter is fixed via the cusp condition for the total electron density at the position of the probe charge. The stopping power is calculated by making use of the transport cross section. The results are in fair agreement with those given by a recent self-consistent calculation. © 1990 The American Physical Society.

引用

页码：1806 / 1808

页数：3

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