高能圆偏振光子产生三重态的分析
Analysis of the triplet production by the circularly polarized photon at high energies
摘要：
研究了通过测量三重态光生$γ+e^-\rightarrow e^+e^- +e^-$过程中产生的电子极化来确定高能光子圆极化的可能性。与光子和产生电子的偏振态有关的事件数并不随光子能量的增加而减少，这就保证了此类实验的高效率。我们研究了不同的双和单分布的创建电子（或正电子），这使得探测光子圆偏振和测量其幅度（股票的参数$ξ_2$），使用的Sudakov的变量的技术。一些实验装置与不同的事件选择规则进行了研究，并提出了相应的数值估计。
英文摘要：
The possibility in principle of the determining high energy photon circular polarization by the measurement of the created electron polarization in the process of triplet photoproduction $γ+e^-\rightarrow e^+e^- +e^-$ is investigated. The respective event number which depend on polarization states of photon and created electron does not decrease with the growth of the photon energy, and this circumstance can ensure the high efficiency in such kind of experiments. We study different double and single distributions of the created electron (or positron), which allow to probe the photon circular polarization and to measure its magnitude (the Stock's parameter $ξ_2$), using the technique of the Sudakov's variables. Some experimental setups with different rules for event selection are studied and corresponding numerical estimations are presented.
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