Hosing of a long relativistic particle bunch in plasma

T. Nechaeva, L. Verra, J. Pucek, L. Ranc, M. Bergamaschi, G. Zevi Della Porta, P. Muggli, Oznur Apsimon, Can Davut, L. Liang, Guoxing Xia, Hossein Saberi, The AWAKE Collaboration

Research output: Contribution to journalArticlepeer-review


Experimental results show that hosing of a long particle bunch in plasma can be induced by wakefields driven by a short, misaligned preceding bunch. Hosing develops in the plane of misalignment, self-modulation in the perpendicular plane, at frequencies close to the plasma electron frequency, and are reproducible. Development of hosing depends on misalignment direction, its growth on misalignment extent and on proton bunch charge. Results have the main characteristics of a theoretical model, are relevant to other plasma-based accelerators and represent the first characterization of hosing.
Original languageEnglish
Article number075001
JournalPhysical Review Letters
Early online date13 Feb 2024
Publication statusE-pub ahead of print - 13 Feb 2024


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