PHYSICAL REVIEW LETTERS AWAKE Collaboration 2019, ' Experimental Observation of Proton Bunch Modulation in a Plasma at Varying Plasma Densities ', Physical Review Letters, vol. 122, no. 5, 054802 . https://doi.org/10.1103/PhysRevLett.122.054802 Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Adli, E, Ahuja, A, Apsimon, O, Apsimon, R, Bachmann, A-M, Barrientos, D, Barros, M M, Batkiewicz, J, Batsch, F, Bauche, J, Berglyd Olsen, V K, Bernardini, M, Biskup, B, Boccardi, A, Bogey, T, Bohl, T, Bracco, C, Braunmüller, F, Burger, S, Burt, G, Bustamante, S, Buttenschön, B, Caldwell, A, Cascella, M, Chappell, J, Chevallay, E, Chung, M, Cooke, D, Damerau, H, Deacon, L, Deubner, L H, Dexter, A, Doebert, S, Farmer, J, Fedosseev, V N, Fior, G, Fiorito, R, Fonseca, R A, Friebel, F, Garolfi, L, Gessner, S, Gorgisyan, I, Gorn, A A, Granados, E, Grulke, O, Gschwendtner, E, Guerrero, A, Hansen, J, Helm, A, Henderson, J R, Hessler, C, Hofle, W, Hüther, M, Ibison, M, Jensen, L, Jolly, S, Keeble, F, Kim, S-Y, Kraus, F, Lefevre, T, LeGodec, G, Li, Y, Liu, S, Lopes, N, Lotov, K V, Maricalva Brun, L, Martyanov, M, Mazzoni, S, Medina Godoy, D, Minakov, V A, Mitchell, J, Molendijk, J C, Mompo, R, Moody, J T, Moreira, M, Muggli, P, Mutin, C, Öz, E, Ozturk, E, Pasquino, C, Pardons, A, Peña Asmus, F, Pepitone, K, Perera, A, Petrenko, A, Pitman, S, Plyushchev, G, Pukhov, A, Rey, S, Rieger, K, Ruhl, H, Schmidt, J S, Shalimova, I A, Shaposhnikova, E, Sherwood, P, Silva, L O, Soby, L, Sosedkin, A P, Speroni, R, Spitsyn, R I, Tuev, P V, Turner, M, Velotti, F, Verra, L, Verzilov, V A, Vieira, J, Vincke, H, Welsch, C P, Williamson, B, Wing, M, Woolley, B & Xia, G 2019, ' Experimental Observation of Proton Bunch Modulation in a Plasma at Varying Plasma Densities ', Physical Review Letters, vol. 122, no. 5, 054802 . https://doi.org/10.1103/PhysRevLett.122.054802 Physical Review Letters