{
  "id": "1907.10294",
  "version": "v1",
  "published": "2019-07-24T08:20:14.000Z",
  "updated": "2019-07-24T08:20:14.000Z",
  "title": "Physics of relativistic collisionless shocks: III The suprathermal particles",
  "authors": [
    "Martin Lemoine",
    "Guy Pelletier",
    "Arno Vanthieghem",
    "Laurent Gremillet"
  ],
  "journal": "Physical Review E, 2019",
  "categories": [
    "astro-ph.HE",
    "physics.plasm-ph"
  ],
  "abstract": "In this third paper of a series, we discuss the physics of the population of accelerated particles in the precursor of an unmagnetized, relativistic collisionless pair shock. In particular, we provide a theoretical estimate of their scattering length $l_{scatt}(p)$ in the self-generated electromagnetic turbulence, as well as an estimate of their distribution function. We obtain $l_{scatt}(p) \\simeq (\\gamma_p /\\epsilon_B)(p/\\gamma_{\\infty} mc)^2 (c/\\omega_p)$, with p the particle momentum in the rest frame of the shock front, $\\epsilon_B$ the strength parameter of the microturbulence, $\\gamma_p$ the Lorentz factor of the background plasma relative to the shock front and $\\gamma_{\\infty}$ its asymptotic value outside the precursor. We compare this scattering length to large-scale PIC simulations and find good agreement for the various dependencies.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-07-24T08:20:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "relativistic collisionless shocks",
      "suprathermal particles",
      "shock front",
      "scattering length",
      "relativistic collisionless pair shock"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. E"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}