{
  "annotation_id": "93ccc2c5-0672-466f-868d-01777bf7420c",
  "date_created": "2026-03-02T18:00:05.114000Z",
  "date_modified": "2026-03-02T18:00:05.114000Z",
  "file_hash": "4c6d58317afdf68fb901aa024e3ab47e1e852f36a4c4679ef74ad557c924e239",
  "private": false,
  "record": {
    "abstract": "The problem of the microscopic description of excited states of the even-even\nopen-shell atomic nuclei is considered. A model is formulated which allows one\nto go beyond the quasiparticle random phase approximation. The physical content\nof the model is determined by the quasiparticle time blocking approximation\n(QTBA) which enables one to include contributions of the two-quasiparticle and\nthe two-phonon configurations, while excluding (blocking) more complicated\nintermediate states. In addition, the QTBA ensures consistent treatment of\nground state correlations in the Fermi systems with pairing. The model is based\non the generalized Green function formalism (GGFF) in which the normal and the\nanomalous Green functions are treated in a unified way in terms of the\ncomponents of generalized Green functions in a doubled space. Modification of\nthe GGFF is considered in the case when the many-body nuclear Hamiltonian\ncontains two-, three-, and other many-particle effective forces.",
    "arxiv_id": "nucl-th/0505031",
    "authors": [
      "V. I. Tselyaev"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.75.024306",
    "journal_ref": "Phys.Rev. C75 (2007) 024306",
    "title": "Quasiparticle time blocking approximation within the framework of   generalized Green function formalism",
    "url": "https://arxiv.org/abs/nucl-th/0505031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7f039b1f-0a1c-4588-b4c1-651d0d02120c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}