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. 2024 Feb 16;132(7):075001.
doi: 10.1103/PhysRevLett.132.075001.

Hosing of a Long Relativistic Particle Bunch in Plasma

T Nechaeva  1 , L Verra  2 , J Pucek  1 , L Ranc  1 , M Bergamaschi  1 , G Zevi Della Porta  1   2 , P Muggli  1 , R Agnello  3 , C C Ahdida  2 , C Amoedo  2 , Y Andrebe  3 , O Apsimon  4   5 , R Apsimon  5   6 , J M Arnesano  2 , V Bencini  2   7 , P Blanchard  3 , P N Burrows  7 , B Buttenschön  8 , A Caldwell  1 , M Chung  9 , D A Cooke  10 , C Davut  4   5 , G Demeter  11 , A C Dexter  5   6 , S Doebert  2 , J Farmer  1 , A Fasoli  3 , R Fonseca  12   13 , I Furno  3 , E Granados  2 , M Granetzny  14 , T Graubner  15 , O Grulke  8   16 , E Gschwendtner  2 , E Guran  2 , J Henderson  5   17 , M Á Kedves  11 , S-Y Kim  2   9 , F Kraus  15 , M Krupa  2 , T Lefevre  2 , L Liang  4   5 , S Liu  18 , N Lopes  13 , K Lotov  19   20 , M Martinez Calderon  2 , S Mazzoni  2 , K Moon  9 , P I Morales Guzmán  1 , M Moreira  13 , N Okhotnikov  19   20 , C Pakuza  7 , F Pannell  10 , A Pardons  2 , K Pepitone  21 , E Poimenidou  2 , A Pukhov  7   22 , S Rey  2 , R Rossel  2 , H Saberi  4   5 , O Schmitz  14 , E Senes  2 , F Silva  23 , L Silva  13 , B Spear  7 , C Stollberg  3 , A Sublet  2 , C Swain  5   24 , A Topaloudis  2 , N Torrado  2   13 , M Turner  2 , F Velotti  2 , V Verzilov  18 , J Vieira  13 , C Welsch  5   24 , M Wendt  2 , M Wing  10 , J Wolfenden  5   24 , B Woolley  2 , G Xia  4   5 , V Yarygova  19   20 , M Zepp  14 ; AWAKE Collaboration
Affiliations

Hosing of a Long Relativistic Particle Bunch in Plasma

T Nechaeva et al. Phys Rev Lett. .

Abstract

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.

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