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Generation of a neutral, high-density electron-positron plasma in the laboratory

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arxiv 1312.0211 v3 pith:S74S44CE submitted 2013-12-01 physics.plasm-ph

classification physics.plasm-ph
keywords electron-positronplasmasapproxgenerationhighneutralastrophysicalaverage
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abstract

We report on the laser-driven generation of purely neutral, relativistic electron-positron pair plasmas. The overall charge neutrality, high average Lorentz factor ($\gamma_{e/p} \approx 15$), small divergence ($\theta_{e/p} \approx 10 - 20$ mrad), and high density ($n_{e/p}\simeq 10^{15}$cm$^{-3}$) of these plasmas open the pathway for the experimental study of the dynamics of this exotic state of matter, in regimes that are of relevance to electron-positron astrophysical plasmas.

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