论文标题
非线性BREIT轮毂生产中的高能伽马 - 光子极化和伽马极光法
High-energy gamma-photon polarization in nonlinear Breit-Wheeler pair production and gamma-polarimetry
论文作者
论文摘要
在量子辐射主导的状态下研究了非极化电子束与反向传播的线性极化激光脉冲的相互作用。我们采用一种半经典的蒙特卡洛方法来描述自旋分辨电子动力学，光子排放和极化以及配对的产生。在这种相互作用中，通过非线性康普顿散射在这种相互作用中中间生成丰富的高能线性伽马光子，其平均极化度超过50％，由于非线性Breit-Wheeler过程，它们与激光场进一步相互作用产生电子质蛋白质对。光子极化被证明会显着影响该对的产量超过10％。可以在前瞻性的两阶段设置中实验鉴定，在该对产量中的光子极化的被考虑的特征。此外，该签名还可以用于高能高频率伽马光子的极化，其分辨率低于1％，目前可实现的激光设施。
The interaction of an unpolarized electron beam with a counterpropagating ultraintense linearly polarized laser pulse is investigated in the quantum radiation-dominated regime. We employ a semiclassical Monte Carlo method to describe spin-resolved electron dynamics, photon emissions and polarization, and pair production. Abundant high-energy linearly polarized gamma photons are generated intermediately during this interaction via nonlinear Compton scattering, with an average polarization degree of more than 50%, which further interacting with the laser fields produce electron-positron pairs due to nonlinear Breit-Wheeler process. The photon polarization is shown to significantly affect the pair yield by a factor beyond 10%. The considered signature of the photon polarization in the pair's yield can be experimentally identified in a prospective two-stage setup. Moreover, the signature can serve also for the polarimetry of high-energy high-flux gamma photons with a resolution well below 1% with currently achievable laser facilities.
