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On the breaking of a plasma wave in a thermal plasma, 1; The Structure of the density singularity

Bulanov, S. V.; Esirkepov, T. Z.; Kando, Masaki; Koga, J. K.; Pirozhkov, A. S.; Nakamura, Tatsufumi; Bulanov, S. S.*; Schroeder, C. B.*; Esarey, E.*; Califano, F.*; Pegoraro, F.*

The structure of the singularity that is formed in a relativistically large amplitude plasma wave close to the wave breaking limit is found by using a simple waterbag electron distribution function. The electron density distribution in the breaking wave has a typical "peakon" form. The maximum value of the electric field in a thermal breaking plasma is obtained and compared to the cold plasma limit. The results of computer simulations for different initial electron distribution functions are in agreement with the theoretical conclusions.

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Category:Physics, Fluids & Plasmas

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