Pair creation by a photon in a strong magnetic field
Pair creation by a photon in a strong magnetic field
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光子在强磁场中产生电子对
DOI：
10.1103/physrevd.75.073009
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发表时间：
2007
影响因子：
5
通讯作者：
V. M. Katkov
中科院分区：
文献类型：
--
作者：
V. Baier;V. M. Katkov
基于磁场中的偏振算符，研究了光子在强磁场中产生对的过程。过程的总概率是用一种适当的方法以一种相对简单的形式计算出来的。新的结果是在准经典方法的范围内得到的，当磁场B =}B{sub 0}时，准经典计算的结果非常接近精确理论在很宽的光子能量范围内的平均概率。准经典近似对于能量分布也是有效的，如果电子和正电子在足够高的能级上产生，即使对于B{>=}B{sub 0}。
The process of pair creation by a photon in a strong magnetic field is investigated based on the polarization operator in the field. The total probability of the process is calculated in a relatively simple form using an adequate method. The new results are obtained in the scope of the quasiclassical approach in the case when the magnetic field B =}B{sub 0}, the results of the quasiclassical calculation are very close to averaged probabilities of exact theory in a very wide range of photon energies. The quasiclassical approximation is valid also for the energy distribution if the electron and the positron are created on high enough levels even for B{>=}B{sub 0}.