Electron-positron pair production by linearly polarized photon in the nuclear field

被引：6

作者：

Bakmaev, S. ^{[1
]}

Kuraev, E. A. ^{[1
]}

Shapoval, I. ^{[2
]}

Peresun'ko, Yu. P. ^{[2
]}

机构：

[1] JINR BLTP, Dubna 141980, Russia

[2] KIPT, Kharkov, Ukraine

来源：

PHYSICS LETTERS B | 2008年 / 660卷 / 05期

关键词：

D O I：

10.1016/j.physletb.2008.01.019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Process of lepton pair production by polarized photon on nuclei can be used to measure the degree of linear polarization of high energy photon. The differential cross section and the analyzing power are calculated with taking into account higher powers of expansion in Z alpha. Pure Coulomb and screened potential are considered. The results are illustrated in terms of asymmetry. The screening effect as well as the effect of higher orders expansion in Z alpha is shown to vanish in limit of pair emission angles exceeding m/omega. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：494 / 500

页数：7

共 17 条

[1] Experimental study of photon beam polarimetry based on nuclear e+e- pair production in an amorphous target [J].