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Transport of high-energy charged particles through spatially-intermittent turbulent magnetic fields

Authors :
Chen, L. E.
Bott, A. F. A.
Tzeferacos, P.
Rigby, A.
Bell, A.
Bingham, R.
Graziani, C.
Katz, J.
Koenig, M.
Li, C. K.
Petrasso, R.
Park, H. -S.
Ross, J. S.
Ryu, D.
White, T. G.
Reville, B.
Matthews, J.
Meinecke, J.
Miniati, F.
Zweibel, E. G.
Sarkar, S.
Schekochihin, A. A.
Lamb, D. Q.
Froula, D. H.
Gregori, G.
Source :
Astrophys. J. 892:114, 2020
Publication Year :
2018

Abstract

Identifying the sources of the highest energy cosmic rays requires understanding how they are deflected by the stochastic, spatially intermittent intergalactic magnetic field. Here we report measurements of energetic charged-particle propagation through a laser-produced magnetized plasma with these properties. We characterize the diffusive transport of the particles experimentally. The results show that the transport is diffusive and that, for the regime of interest for the highest-energy cosmic rays, the diffusion coefficient is unaffected by the spatial intermittency of the magnetic field.<br />Comment: Updated Author and Reviewer Information, 23 pages 17 figures

Details

Database :
arXiv
Journal :
Astrophys. J. 892:114, 2020
Publication Type :
Report
Accession number :
edsarx.1808.04430
Document Type :
Working Paper
Full Text :
https://doi.org/10.3847/1538-4357/ab7a19