相对论对射束-等离子体不稳定性的实验室观测
等离子体物理
2026-02-19 v1
摘要
我们报告了在相对论电子-正电子对发生物质中集体行为的测量。使用 CERN HiRadMat 设施的 Fireball 平台，440 GeV 质子用于产生一种超相对论、电中性的电子-正电子对束，其在环境 RF 放电等离子体中传播。通过高灵敏度的费米旋转探针诊断了由于束-等离子体不稳定性引起的磁场增强，同时对诊断冲量响应进行了详细表征。测量得到的路径积分磁场与粒子-in-cell 模拟的预测相符。该结果为模型提供了关键基准，这些模型用于天体物理情境中的相对论束-等离子体相互作用，如类星体喷流和脉冲星风星云。
引用
@article{arxiv.2602.16542,
title = {Laboratory observation of collective beam-plasma instabilities in a relativistic pair jet},
author = {J W D Halliday and C D Arrowsmith and A M Goillot and P J Bilbao and P Simon and V Stergiou and S Zhang and P Alexaki and M Bochmann and A F A Bott and S Burger and H Chen and F D Cruz and T Davenne and A Dyson and A Ebn Rahmoun and I Efthymiopoulos and D H Froula and J T Gudmundsson and D Haberberger and T Hodge and S Iaquinta and E E Los and G Marshall and F Miniati and S Parker and B Reville and P Rousiadou and S Sarkar and A A Schekochihin and K G Schlesinger and L O Silva and T Silva and R Simpson and E Soria and R M G M Trines and T Vieu and N Charitonidis and R Bingham and G Gregori},
journal= {arXiv preprint arXiv:2602.16542},
year = {2026}
}
备注
7 pages, 4 figures