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

被引：57

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

共 39 条

[1]

Balashov V. V., 2000, Polarization and Correlation Phenomena in Atomic Collisions: A Practical Theory Course

[2] COMPTON-SCATTERING OF PHOTONS FROM BOUND ELECTRONS - FULL RELATIVISTIC INDEPENDENT-PARTICLE-APPROXIMATION CALCULATIONS [J].

BERGSTROM, PM ;

SURIC, T ;

PISK, K ;

PRATT, RH .

PHYSICAL REVIEW A, 1993, 48 (02) :1134-1162

[3] BREMSSTRAHLUNG CROSS SECTIONS AT MODERATE ENERGIES [J].

BRYSK, H ;

ZERBY, CD ;

PENNY, SK .

PHYSICAL REVIEW, 1969, 180 (01) :104-&

[4] COMPLEX-PLANE METHODS FOR EVALUATING HIGHLY OSCILLATORY INTEGRALS IN NUCLEAR-PHYSICS .1. [J].

DAVIES, KTR ;

STRAYER, MR ;

WHITE, GD .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1988, 14 (07) :961-972

[5] EXACT POINT-COULOMB CALCULATIONS OF DIFFERENTIAL CROSS-SECTIONS OF ATOMIC-FIELD BREMSSTRAHLUNG [J].

DUGNE, JJ ;

PRORIOL, J .

PHYSICAL REVIEW A, 1975, 12 (03) :842-845

[6]

Eichler J., 1995, Relativistic Atomic Collisions

[7] Radiative electron capture in relativistic ion-atom collisions and the photoelectric effect in hydrogen-like high-Z systems [J].

Eichler, Joerg ;

Stohlker, Thomas .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2007, 439 (1-2) :1-99

[8] HIGH-FREQUENCY LIMIT OF BREMSSTRAHLUNG IN THE SAUTER APPROXIMATION [J].

FANO, U .

PHYSICAL REVIEW, 1959, 116 (05) :1156-1158

[9] CONNECTION BETWEEN THE BREMSSTRAHLUNG TIP AND DIRECT RADIATIVE RECOMBINATION - ANGULAR-DISTRIBUTIONS AND POLARIZATION CORRELATIONS [J].

FENG, IJ ;

GOLDBERG, IB ;

KIM, YS ;

PRATT, RH .

PHYSICAL REVIEW A, 1983, 28 (02) :609-614

[10]

Gradshteyn I S., 2007, Tables of Integrals, Series and Products, V(eds)

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