论文标题
使用Bella PW激光双光束的强场QED实验
Strong-Field QED Experiments using the BELLA PW Laser Dual Beamlines
论文作者
论文摘要
伯克利实验室激光加速器（Bella）中心的Petawatt（PW）激光设施最近委托其第二次激光脉冲运输线。该新的光束线可以与第一个梁线并行操作，并在贝拉实现强场量子电动力学（SF-QED）实验。在本文中，我们介绍了升级后的Bella PW设施的概述，其中具有SF-QED实验布局，其中激烈的激光脉冲与GEV级激光效果 - 效果 - 沃克菲尔德 - 加速电子束相撞。我们提出了仿真结果，表明实验将允许研究从经典到SF-QED制度的激光粒子相互作用，其非线性量子参数为$χ\ sim $ 2。此外，我们表明实验将通过BREIT-WHEELER工艺实现GEV级，MRAD-Divergence正电子光束的研究和生产。
The Petawatt (PW) laser facility of the Berkeley Lab Laser Accelerator (BELLA) Center has recently commissioned its second laser pulse transport line. This new beamline can be operated in parallel with the first beamline and enables strong-field quantum electrodynamics (SF-QED) experiments at BELLA. In this paper, we present an overview of the upgraded BELLA PW facility with a SF-QED experimental layout in which intense laser pulses collide with GeV-class laser-wakefield-accelerated electron beams. We present simulation results showing that experiments will allow the study of laser-particle interactions from the classical to the SF-QED regime with a nonlinear quantum parameter of up to $χ\sim$2. In addition, we show that experiments will enable the study and production of GeV-class, mrad-divergence positron beams via the Breit-Wheeler process.
