Electron-atom bremsstrahlung: Double-differential cross section and polarization correlations

被引：58

作者：

Yerokhin, Vladimir A. ^{[1
,2
,3
]}

Surzhykov, Andrey ^{[1
,2
]}

机构：

[1] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[2] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany

[3] St Petersburg State Polytech Univ, Ctr Adv Studies, St Petersburg 195251, Russia

来源：

PHYSICAL REVIEW A | 2010年 / 82卷 / 06期

关键词：

INDEPENDENT-PARTICLE-APPROXIMATION; INTEGRALS; SPECTRUM; CAPTURE; TIP;

D O I：

10.1103/PhysRevA.82.062702

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The leading-order electron-atom bremsstrahlung is investigated within the rigorous relativistic approach based on the partial-wave representation of the Dirac wave functions in the external atomic field. Approximating the atomic target by an effective local potential, we calculate the double-differential cross section and the polarization correlations in a wide range of the impact energies. Connection between the bremsstrahlung at the hard-photon end point of the spectrum and the continuum-threshold limit of the radiative recombination is studied. A detailed analysis of the screening effect and the energy dependence of the polarization correlations is presented, with the main focus on the high-impact-energy region.

引用

页数：12

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