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

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\(...

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Bibliographic Details
Published in:arXiv.org 2015-03
Main Authors: Sarri, G, Poder, K, Cole, J, Schumaker, W, A Di Piazza, Reville, B, Doria, D, Dromey, B, Gizzi, L, Green, A, Grittani, G, Kar, S, Keitel, C H, Krushelnick, K, Kushel, S, Mangles, S, Najmudin, Z, Thomas, A G R, Vargas, M, Zepf, M
Format: Article
Language:English
Subjects:
Density
Divergence
Electron-positron plasmas
Electrons
Lorentz factor
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Summary: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.
ISSN:2331-8422