论文标题
线性BREIT轮毂对生产高能Bremsstrahlung光子与强烈的X射线激光脉冲相撞
Linear Breit-Wheeler pair production by high-energy bremsstrahlung photons colliding with an intense X-ray laser pulse
论文作者
论文摘要
理论上研究了光子 - 光子碰撞中电子和正电子的实验验证的实验验证的可能设置。它结合了高能的bremsstrahung光子，该光子被认为是由通过高$ z $靶标穿透的GEV电子的入射光束以及来自X射线激光场的KeV光子的，该光子被描述为聚焦的高斯脉冲。我们讨论了这对的依赖性对入射电子能量，目标厚度，激光参数和碰撞几何形状的依赖性。结果表明，对于如今的X射线激光器设施的合适条件，所产生的颗粒数量似乎是可以访问的，可以使第一个实验性观察到线性Breit-wheeler工艺$γγ\至E^+E^ - $。
A possible setup for the experimental verification of linear Breit-Wheeler pair creation of electrons and positrons in photon-photon collisions is studied theoretically. It combines highly energetic bremsstrahlung photons, which are assumed to be generated by an incident beam of GeV electrons penetrating through a high-$Z$ target, with keV photons from an X-ray laser field, which is described as a focused Gaussian pulse. We discuss the dependencies of the pair yields on the incident electron energy, target thickness, laser parameters, and collision geometry. It is shown that, for suitable conditions which are nowadays in reach at X-ray laser facilities, the resulting number of created particles seems to be well accessible for enabling the first experimental observation of the linear Breit-Wheeler process $γγ\to e^+e^-$.
