Lepton pair production by a high energy photon in a strong electromagnetic field

被引：46

作者：

Ivanov, D

Melnikov, K

机构：

[1] Univ Leipzig, Nat Wissensch Theoret Zentrum, D-04109 Leipzig, Germany

[2] Univ Leipzig, Inst Theoret Phys, D-04109 Leipzig, Germany

[3] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.57.4025

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the impact-factor representation, we consider lepton pair production by an incident high energy photon in the strong electromagnetic field of a nucleus. By summing leading terms of the perturbation series, we obtain a simple formula for the amplitude, valid to all orders in O(alpha Z) and an arbitrary field of the nucleus. Using these results, we derive, in a simple manner, the results for lepton pair production by a virtual incident photon in a Coulomb field. For a real incident photon our results coincide with the known ones. Also, a particular example of a non-Coulomb potential is discussed in some detail. [S0556-2821(98)02307-8].

引用

页码：4025 / 4034

页数：10

共 12 条

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