{
  "id": "1102.2528",
  "version": "v1",
  "published": "2011-02-12T16:55:08.000Z",
  "updated": "2011-02-12T16:55:08.000Z",
  "title": "On angular ordering in medium-induced radiation",
  "authors": [
    "K. Tywoniuk"
  ],
  "comment": "4 pages, 1 figure. Proceedings of the 4th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions (Hard Probes 2010), Eilat, Israel",
  "journal": "Nucl.Phys.A855:465-468,2011",
  "doi": "10.1016/j.nuclphysa.2011.02.107",
  "categories": [
    "hep-ph"
  ],
  "abstract": "Medium-induced gluon radiation gives rise to the strong energy-loss observed in single-hadron spectra in heavy-ion collisions. Its angular structure, leading e.g. to intra-jet correlations, is only known for the one-gluon inclusive case. In the vacuum, properties such as angular ordering appear when considering less inclusive distributions due to destructive interference effects. We present a calculation which takes into account interference effects in a medium for a setup in which we consider gluon radiation off a quark-antiquark pair with a given opening angle. Surprisingly, computing the spectrum at leading-log accuracy we find that an ordering exists which is exactly opposite from that in the vacuum. We estimate the magnitude of the effect along with a discussion of the implications of such \"anti-angular ordering\" on jet physics in heavy-ion collisions.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-02-12T16:55:08.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "medium-induced radiation",
      "heavy-ion collisions",
      "account interference effects",
      "medium-induced gluon radiation",
      "angular structure"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier",
      "journal": "Nuclear Physics A",
      "year": 2011,
      "month": "Apr",
      "volume": 855,
      "number": 1,
      "pages": 465
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 889581,
      "adsabs": "2011NuPhA.855..465T"
    }
  }
}