{
  "id": "2112.05161",
  "version": "v2",
  "published": "2021-12-09T19:00:01.000Z",
  "updated": "2022-08-18T19:18:39.000Z",
  "title": "The LPM effect in sequential bremsstrahlung: analytic results for sub-leading (single) logarithms",
  "authors": [
    "Peter Arnold",
    "Tyler Gorda",
    "Shahin Iqbal"
  ],
  "comment": "54 pages, 20 figures. Chages from v1 are superficial -- mostly a slight expansion of the introduction and conclusion",
  "categories": [
    "hep-ph",
    "nucl-th"
  ],
  "abstract": "Consider the in-medium splitting $g \\to gg$ of a very high-energy gluon traversing a QCD medium, accounting for the Landau-Pomeranchuk-Migdal (LPM) effect. It has been known for some time that soft radiative corrections to that splitting generate a double-log correction to the splitting rate, whose effects can be absorbed into running of the medium parameter $\\hat q$ describing the rate of transverse momentum kicks to high-energy particles due to small-angle scattering from the medium. Less has been known about sub-leading, single logarithms in this context. In this paper, we find analytic formulas for those single logs (with various caveats and clarifications).",
  "revisions": [
    {
      "version": "v2",
      "updated": "2022-08-18T19:18:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "analytic results",
      "sequential bremsstrahlung",
      "lpm effect",
      "logarithms",
      "transverse momentum kicks"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 54,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}