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arXiv 2305.08166hep-ph
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等离子体谐波产生用于高效 Breit-Wheeler 对产生

Plasma harmonic generation for highly efficient Breit-Wheeler pair creation

Suo Tang

AI总结:

本文提出利用等离子体谐波与 GeV 光子束碰撞,显著提高 Breit-Wheeler 对产生产额,并利用场不对称性实现高达 60% 的自旋极化。

摘要:

观测高效的 Breit-Wheeler 电子-正电子对产生是现代强激光-粒子实验的主要目标之一。我们提出通过将当前可用的激光脉冲产生的等离子体谐波与 GeV 光子束相碰撞来探索这一过程。我们表明,与没有高次谐波产生的情况相比,对产生产额提高了超过一个数量级。通过考虑多个相互作用参数和即将进行的实验的潜在光子源,证明了产额增强的稳健性。此外,我们表明,由于等离子体谐波中明显的场不对称性,所产生的对的自旋极化可高达 $60\%$。

英文摘要:

Observation of efficient Breit-Wheeler electron-positron pair creation is one of the main goals for modern-day strong laser-particle experiments. We propose exploring this process by colliding plasma-generated harmonics, from currently available laser pulses, with a beam of GeV photons. We show that the creation yield is enhanced for more than one order of magnitude, compared with the yield obtained without high-harmonic generation. The robustness of the yield enhancement is demonstrated by considering multiple interaction parameters and the potential photon source for the upcoming experiments. Moreover, we show that due to the evident field asymmetry in the plasma-generated harmonics, the spin-polarization of the created pairs could be as high as $60\%$.

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。

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