MULTIPLICITY DISTRIBUTION OF ELECTRON-POSITRON PAIRS CREATED BY STRONG EXTERNAL FIELDS

被引：48

作者：

BEST, C ^{[1
]}

GREINER, W ^{[1
]}

SOFF, G ^{[1
]}

机构：

[1] GESELL SCHWERIONENFORSCH GMBH, W-6100 DARMSTADT, GERMANY

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.46.261

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We discuss the multiplicity distribution of electron-positron pairs created in the strong electromagnetic fields of ultrarelativistic heavy-ion transits. Based on nonperturbative expressions for the N-pair creation amplitudes, the Poisson distribution is derived by neglecting interference terms. The source of unitarity violation is identified in the vacuum-to-vacuum amplitude, and a perturbative expression for the mean number of pairs is given.

引用

页码：261 / 269

页数：9

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