Influence of a medium on pair photoproduction and bremsstrahlung

被引：18

作者：

Baier, VN ^{[1
]}

Katkov, VM ^{[1
]}

机构：

[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

来源：

PHYSICAL REVIEW D | 2000年 / 62卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.62.036008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The creation of an electron-positron pail by a photon and the bremsstrahlung of an electron in a medium are considered in the high-energy region, where the influence of multiple scattering on the processes [the Landau-Pomeranchuk-Migdal (LPM) effect] becomes essential. The pair photoproduction probability is calculated with an accuracy up to the "next to leading logarithm." The integral characteristics, the radiation length and the total probability of pair photoproduction are analyzed under the influence of the LPM effect, and the asymptotic expansions of these characteristics are derived.

引用

页码：1 / 13

页数：13

共 16 条

[1] The Landau-Pomeranchuk-Migdal effect in QED [J].