• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental and Theoretical Physics >Resonant electron-positron pair photoproduction on a nucleus in a pulsed light field
【24h】

Resonant electron-positron pair photoproduction on a nucleus in a pulsed light field

机译：脉冲光场中原子核上的共振电子-正电子对光产生

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The resonant photoproduction of an electron-positron pair on a nucleus in the field of a pulsed light wave is studied theoretically. The approximation where the electromagnetic pulse duration is much longer than the characteristic time of wave oscillations is considered. The interaction of the electron and positron with the Coulomb potential of the nucleus is considered in the Born approximation. An analytical expression for the resonant differential cross section is derived for the range of moderately strong external fields. This cross section contains a resonant peak whose height and width are determined by the external pulsed wave characteristics. The resonant cross section for pair photoproduction on a nucleus in a pulsed laser field can exceed the corresponding cross section for pair photoproduction on a nucleus in the absence of an external field by an order of magnitude.
机译：理论上研究了脉冲光波场中原子核上电子-正电子对的共振光产生。考虑电磁脉冲持续时间比波振荡的特征时间长得多的近似值。电子和正电子与原子核的库仑势之间的相互作用在伯恩近似中被考虑。对于中等强度的外场范围，得出了谐振微分截面的解析表达式。此横截面包含一个共振峰，其高度和宽度由外部脉冲波特性确定。在没有外部场的情况下，在脉冲激光场中原子对上的成对光产生的共振截面可以超过在原子核上成对的光产生的相应截面。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号