J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 1047-1050
Debye sheath of laser produced plasmas generalized to the quark-gluon plasmas and high energy density physicsH. Hora1, G.H. Miley2 and F. Osman3
1 Department of Theoretical Physics, University of New South Wales, Sydney 2052, Australia
2 Fusion Studies Laboratory, University of Illinois, Urbana 61801, USA
3 School of Quantitative Methods and Mathematical Science, University of Western Sydney, Penrith South 1797, Australia
Generation of very intense proton beams at relativistic interaction of ps-PW laser pulses at the rare side of irradiated foils were explained by a PIC computation as a target normal sheath acceleration mechanism (TNSA) . This is a typical process in an electric double layer of a Debye sheath in contrast to the sub-relativistic nonlinear forces for the skin layer acceleration (SLA) at plane target geometry based on very high contrast ratio to avoid relativistic self-focusing. We discuss the Debye layer process as known from laser generated plasma and how these properties are essential for the laser-plasma interaction process, e.g. under the relativistic conditions for the TNSA process, while the subrelativistic plasma blocks for ignition of condensed or higher density deuterium-tritium have a sufficiently low Debye length. From these results, a basically new concept of nuclear forces and consequences about quark-gluon plasma can be derived by generalizing the Debye layer property for the confinement of the hadrons in a nucleus.
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