{
  "annotation_id": "913a132c-948e-4a66-8ff9-3afa7135293e",
  "date_created": "2026-03-02T18:00:08.530000Z",
  "date_modified": "2026-03-02T18:00:08.530000Z",
  "file_hash": "0e6501c4df5cc95a825f925649fb02de04cfdd20326585fb91321607e214be72",
  "private": false,
  "record": {
    "abstract": "In the framework of a multi-phase transport model (AMPT) with both partonic\nand hadronic interactions, azimuthal correlations between trigger particles and\nassociated scattering particles have been studied by the mixing-event\ntechnique. The momentum ranges of these particles are $3\u003c p^{trig}_T\u003c 6$\nGeV/$c$ and $0.15\u003c p_{T}^{assoc} \u003c 3$ GeV/$c$ (soft), or $2.5\u003cp^{trig}_T\u003c$ 4\nGeV/$c$ and $1\u003c p_{T}^{assoc} \u003c 2.5$ GeV/$c$ (hard) in Au + Au collisions at\n$\\sqrt{s_{NN}}$ = 200 GeV. A Mach-like structure has been observed in\ncorrelation functions for central collisions. By comparing scenarios with and\nwithout parton cascade and hadronic rescattering, we show that both partonic\nand hadronic dynamical mechanisms contribute to the Mach-like structure of the\nassociated particle azimuthal correlations. The contribution of hadronic\ndynamical process can not be ignored in the emergence of Mach-like correlations\nof the soft scattered associated hadrons. However, hadronic rescattering alone\ncannot reproduce experimental amplitude of Mach-like cone on away-side, and the\nparton cascade process is essential to describe experimental amplitude of\nMach-like cone on away-side. In addition, both the associated multiplicity and\nthe sum of $p_{T}$ decrease, whileas the $\u003cp_{T}\u003e$ increases, with the impact\nparameter in the AMPT model including partonic dynamics from string melting\nscenario.",
    "arxiv_id": "nucl-th/0601012",
    "authors": [
      "G. L. Ma",
      "S. Zhang",
      "Y. G. Ma",
      "H. Z. Huang",
      "X. Z. Cai",
      "J. H. Chen",
      "Z. J. He",
      "J. L. Long",
      "W. Q. Shen",
      "X. H. Shi",
      "J. X. Zuo"
    ],
    "categories": [
      "nucl-th",
      "hep-ph",
      "nucl-ex"
    ],
    "doi": "10.1016/j.physletb.2006.09.001",
    "journal_ref": "Phys.Lett.B641:362-367,2006",
    "title": "Di-hadron azimuthal correlation and Mach-like cone structure in   parton/hadron transport model",
    "url": "https://arxiv.org/abs/nucl-th/0601012"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "07a2dd41-7218-4f3f-bd26-d68a03f41de4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}