@article{36bcbfa7afb54bcb9964450d4f0e1dcc,
title = "Experimental Observation of Plasma Wakefield Growth Driven by the Seeded Self-Modulation of a Proton Bunch",
abstract = "We measure the effects of transverse wakefields driven by a relativistic proton bunch in plasma with densities of 2.1×1014 and 7.7×1014 electrons/cm3. We show that these wakefields periodically defocus the proton bunch itself, consistently with the development of the seeded self-modulation process. We show that the defocusing increases both along the bunch and along the plasma by using time resolved and time-integrated measurements of the proton bunch transverse distribution. We evaluate the transverse wakefield amplitudes and show that they exceed their seed value (<15 MV/m) and reach over 300 MV/m. All these results confirm the development of the seeded self-modulation process, a necessary condition for external injection of low energy and acceleration of electrons to multi-GeV energy levels.",
keywords = "AWAKE, BEAM, ACCELERATION, INSTABILITY, ELECTRONS",
author = "{CERN, Switzerland} and M. Turner and E. Adli and A. Ahuja and O. Apsimon and R. Apsimon and Bachmann, {A. M.} and {Barros Marin}, M. and D. Barrientos and F. Batsch and J. Batkiewicz and J. Bauche and {Berglyd Olsen}, {V. K.} and M. Bernardini and B. Biskup and A. Boccardi and T. Bogey and T. Bohl and C. Bracco and F. Braunm{\"u}ller and S. Burger and G. Burt and S. Bustamante and B. Buttensch{\"o}n and A. Caldwell and M. Cascella and J. Chappell and E. Chevallay and M. Chung and D. Cooke and H. Damerau and L. Deacon and Deubner, {L. H.} and A. Dexter and S. Doebert and J. Farmer and Fedosseev, {V. N.} and G. Fior and R. Fiorito and Fonseca, {R. A.} and F. Friebel and L. Garolfi and S. Gessner and I. Gorgisyan and Gorn, {A. A.} and E. Granados and O. Grulke and E. Gschwendtner and Lotov, {K. V.} and Sosedkin, {A. P.} and Spitsyn, {R. I.}",
year = "2019",
month = feb,
day = "8",
doi = "10.1103/PhysRevLett.122.054801",
language = "English",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "5",
}