{
  "annotation_id": "570510b4-6820-40ac-8729-00995641c543",
  "date_created": "2026-03-02T18:00:01.127000Z",
  "date_modified": "2026-03-02T18:00:01.127000Z",
  "file_hash": "fac151dc13ced0cdc3e89214228668068c75c41a1dbfaa063cd79b33044849e0",
  "private": false,
  "record": {
    "abstract": "This paper describes a tentative relativistic quantum mechanics approach\ninspired by Dirac\u0027s point-form, which is based on the physics description on a\nhyperboloid surface. It is mainly characterized by a non-standard relation of\nthe constituent momenta of some system to its total momentum. Contrary to\ninstant- and front-form approaches, where it takes the form of a 3-dimensional\ndelta function, the relation is given here by a Lorentz-scalar constraint.\nThus, in the c.m. frame, the sum of the constituent momenta, which differs from\nzero off-energy shell, has no fixed direction, in accordance with the absence\nof preferred direction on a hyperboloid surface. To some extent, this gives\nrise to an extra degree of freedom entering the description of the system of\ninterest. The development of a consistent formalism within this picture is\ndescribed. Comparison with other approaches is made.",
    "arxiv_id": "nucl-th/0405059",
    "authors": [
      "B. Desplanques"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1016/j.nuclphysa.2004.10.015",
    "journal_ref": "Nucl.Phys. A748 (2005) 139-167",
    "title": "Relativistic quantum mechanics: A Dirac\u0027s point-form inspired approach",
    "url": "https://arxiv.org/abs/nucl-th/0405059"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5f41dfd4-9717-4ed7-8ea7-099a440c4f0d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}