论文标题
通过优化的聚焦在激光电子山液壁上获得强场QED信号
Attaining a strong-field QED signal at laser-electron colliders with optimized focusing
论文作者
论文摘要
用强烈的激光脉冲碰撞的高能电子，为研究强量QED过程的基础提供了一个基础，该过程由高量子非线性参数$χ$ $。然而，由于过程的概率性质和冲击参数的射击变化，信号反卷积是复杂的，这会消除使用紧密聚焦的使用。我们提出了一个概念，以区分高$χ$排放的信号，该概念能够使用最佳聚焦来达到最高的$χ\ \ 5.25 \左（\ varepsilon/（\ varepsilon/（\ text {1 gev}）\ right）\ right） }μ\ text {m}）/λ\ right）$对于给定的电子能量$ \ varepsilon $，激光功率$ p $和波长$λ$。以f/2的焦点达到这样的$χ$，需要提高功率超过10倍。
Colliding bunches of high-energy electrons with intense laser pulses provides a basis for studying strong-field QED processes enabled by high values of quantum non-linearity parameter $χ$. Nevertheless, the signal deconvolution is intricate due to probabilistic nature of the processes and shot-to-shot variation of the impact parameter, which disfavors the use of tight focusing. We propose a concept for distinguishing the signal of high-$χ$ emissions that enables the use of optimal focusing to attain the highest $χ\approx 5.25 \left(\varepsilon / (\text{1 GeV})\right)\left(P/(\text{1 PW})\right)^{1/2}\left((\text{1 }μ\text{m})/λ\right)$ for a given electron energy $\varepsilon$, laser power $P$ and wavelength $λ$. Reaching such $χ$ with f/2 focusing requires more than 10 times higher power.
