接近光谱末端的高能$e^+e^-$光产生的角分布
Angular distribution of high-energy $e^+e^-$ photoproduction close to the end of spectrum
摘要：
本文研究高能光子在强库仑场中产生电子-正电子对的微分截面。当动量传递大大超过电子质量时，截面以紧凑的形式解析地获得。库仑修正基本上修改了即使是中等值的核电荷数$Z$的横截面。在同一运动学区域内，还获得了束缚-自由对产生、韧致辐射和光复合的角分布。
英文摘要：
We consider the differential cross section of electron-positron pair production by a high-energy photon in a strong Coulomb field close to the end of the electron or positron spectrum. When the momentum transfer largely exceeds the electron mass, the cross section is obtained analytically in a compact form. Coulomb corrections essentially modify the cross section even for moderate values of the nuclear charge number $Z$. In the same kinematical region, the angular distribution for bound-free pair production, bremsstrahlung, and photorecombination is also obtained.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
