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Laboratory realization of relativistic pair-plasma beams

Arrowsmith, C. D. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Simon, P. (author)
European Organization for Nuclear Research (CERN), CH-1211, Geneva 23, Switzerland; GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291, Darmstadt, Germany, Planckstraße 1
Bilbao, P. J. (author)
GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal
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Bott, A. F.A. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Burger, S. (author)
European Organization for Nuclear Research (CERN), CH-1211, Geneva 23, Switzerland
Chen, H. (author)
Lawrence Livermore National Laboratory, 7000 East Ave, 94550, Livermore, CA, USA, 7000 East Ave
Cruz, F. D. (author)
GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal
Davenne, T. (author)
STFC Rutherford Appleton Laboratory, OX11 0QX, Chilton, Didcot, UK, Didcot
Efthymiopoulos, I. (author)
European Organization for Nuclear Research (CERN), CH-1211, Geneva 23, Switzerland
Froula, D. H. (author)
University of Rochester Laboratory for Laser Energetics, 14623, Rochester, NY, USA
Goillot, A. (author)
European Organization for Nuclear Research (CERN), CH-1211, Geneva 23, Switzerland
Gudmundsson, Jon Tomas, 1965- (author)
KTH,Rymd- och plasmafysik,Science Institute, University of Iceland, Dunhaga 3, IS-107, Reykjavik, Iceland, Dunhaga 3
Haberberger, D. (author)
University of Rochester Laboratory for Laser Energetics, 14623, Rochester, NY, USA
Halliday, J. W.D. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Hodge, T. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road; AWE, Aldermaston, RG7 4PR, Reading, Berkshire, UK, Berkshire
Huffman, B. T. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Iaquinta, S. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Miniati, F. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Reville, B. (author)
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, Germany, Saupfercheckweg 1
Sarkar, S. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Schekochihin, A. A. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
Silva, L. O. (author)
GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal
Simpson, R. (author)
Lawrence Livermore National Laboratory, 7000 East Ave, 94550, Livermore, CA, USA, 7000 East Ave
Stergiou, V. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road; European Organization for Nuclear Research (CERN), CH-1211, Geneva 23, Switzerland; School of Applied Mathematics and Physical Sciences, National Technical University of Athens, 157 72, Athens, Greece
Trines, R. M.G.M. (author)
STFC Rutherford Appleton Laboratory, OX11 0QX, Chilton, Didcot, UK, Didcot
Vieu, T. (author)
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, Germany, Saupfercheckweg 1
Charitonidis, N. (author)
European Organization for Nuclear Research (CERN), CH-1211, Geneva 23, Switzerland
Bingham, R. (author)
STFC Rutherford Appleton Laboratory, OX11 0QX, Chilton, Didcot, UK, Didcot; Department of Physics, University of Strathclyde, G4 0NG, Glasgow, UK
Gregori, G. (author)
Department of Physics, University of Oxford, Parks Road, OX1 3PU, Oxford, UK, Parks Road
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 (creator_code:org_t)
Springer Nature, 2024
2024
English.
In: Nature Communications. - : Springer Nature. - 2041-1723. ; 15:1
Related links:
https://doi.org/10.1...
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https://urn.kb.se/re...
https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black-hole and neutron-star magnetospheres, where accretion-powered jets and pulsar winds are expected to be enriched with electron-positron pairs. Their role in the dynamics of such environments is in many cases believed to be fundamental, but their behavior differs significantly from typical electron-ion plasmas due to the matter-antimatter symmetry of the charged components. So far, our experimental inability to produce large yields of positrons in quasi-neutral beams has restricted the understanding of electron-positron pair plasmas to simple numerical and analytical studies, which are rather limited. We present the first experimental results confirming the generation of high-density, quasi-neutral, relativistic electron-positron pair beams using the 440 GeV/c beam at CERN’s Super Proton Synchrotron (SPS) accelerator. Monte Carlo simulations agree well with the experimental data and show that the characteristic scales necessary for collective plasma behavior, such as the Debye length and the collisionless skin depth, are exceeded by the measured size of the produced pair beams. Our work opens up the possibility of directly probing the microphysics of pair plasmas beyond quasi-linear evolution into regimes that are challenging to simulate or measure via astronomical observations.

Subject headings

NATURVETENSKAP  -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)

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