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arXiv 2302.04051physics.plasm-phphysics.acc-ph
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欠密等离子体中长相对论质子束团的聚焦

Focusing of a Long Relativistic Proton Bunch in Underdense Plasma

Livio Verra, Edda Gschwendtner, Patric Muggli

摘要:

讨论了长相对论质子束团在欠密等离子体中传输时所经历的聚焦效应。我们表明,与2D准静态模拟的等离子体的存在下的束的响应提供了一个聚焦力的质子。我们讨论了等离子体的有限横向尺寸对过程动力学的影响,并介绍了欧洲核子研究中心AWAKE实验中进行的测量。

英文摘要:

We discuss the focusing effect experienced by a long relativistic proton bunch, when propagating in underdense plasma. We show with 2D quasi-static simulations that the response of the plasma to the presence of the bunch provides a focusing force for the protons. We discuss the impact of the finite transverse size of the plasma on the dynamics of the process and we introduce the measurements performed at the AWAKE experiment at CERN.

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