Transport of High-energy Charged Particles in Spatially Intermittent Magnetized Turbulence
ORAL
Abstract
The identification of sources of high-energy cosmic rays (CRs) requires the understanding of how CRs are deflected by the stochastic, spatially intermittent intergalactic magnetic field. We discuss a set of recently published laser-driven experiments of the TDYNO collaboration, which measure the propagation of energetic charged particles through a magnetized plasma with these properties. These experiments were designed using the FLASH code and were executed on the Omega Laser Facility at the Laboratory for Laser Energetics of the University of Rochester. The diffusive transport is characterized experimentally. The results show that the transport is diffusive and that, for the regime of interest for the highest-energy CRs, the diffusion coefficient is unaffected by the spatial intermittency of the magnetic field.
*The research leading to these results has received funding from the ERC under FP7/2007-2013/ERC Grant Agreements Nos. 256973 and 247039, the U.S. DOE NNSA under FWP No. 57789, Subcontracts Nos. 536203 with LANL and B632670 with LLNL, Awards Nos. DE-NA0002724, DE-NA0003605, and DE-NA0003934 to the Flash Center for Computational Science, and Cooperative Agreement DE-NA0001944 to the Laboratory for Laser Energetics University of Rochester. We acknowledge support from the U.S. DOE SC/FES under Award No. DE-SC0016566 and the NSF under Award Nos. PHY-1619573 and PHY-1903430.
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