{
  "annotation_id": "347ddda5-b64f-46a3-86d2-845f87e3776e",
  "date_created": "2026-03-02T18:00:32.768000Z",
  "date_modified": "2026-03-02T18:00:32.768000Z",
  "file_hash": "72c36ec8ccbc76f5ff65ed137b07844ea40910c4c4eb1d7f2c31e25c6949eb35",
  "private": false,
  "record": {
    "abstract": "We report results of differential cross sections for elastic scattering,\ntarget-elastic Ps excitations and target-inelastic excitation of hydrogen in a\nfive-state coupled-channel model allowing for Ps(1s)H(2s,2p) and Ps(2s,2p)H(1s)\nexcitations using a recently proposed time-reversal-symmetric regularized\nelectron-exchange model potential. The present model yields a singlet Ps-H\nS-wave resonance at 4.01 eV of width 0.15 eV and a P-wave resonance at 5.08 eV\nof width 0.004 eV. We also study the effect of the inclusion of the excited Ps\nand H states on the convergence of the coupled-channel scheme.",
    "arxiv_id": "physics/0012040",
    "authors": [
      "Sadhan K. Adhikari"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.atm-clus",
      "physics.chem-ph"
    ],
    "doi": "10.1103/PhysRevA.63.054502",
    "journal_ref": "Phys. Rev. A 63 (2001) 054502 (1-4)",
    "title": "Differential cross sections for elastic and inelastic   positronium-hydrogen-atom scattering",
    "url": "https://arxiv.org/abs/physics/0012040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "32d42576-2937-43d4-bae3-31ae4a796265",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}