{
  "annotation_id": "4ee3951d-8663-464c-8ab6-a7b8c27e84d9",
  "date_created": "2026-03-02T18:00:05.026000Z",
  "date_modified": "2026-03-02T18:00:05.026000Z",
  "file_hash": "62f481c7cbdc0b0f68d3622532b4ae330845cb1689af3694ad428da4ca4980aa",
  "private": false,
  "record": {
    "abstract": "In the model of low-energy bar-K N interactions near threshold (EPJA 21, 11\n(2004); 25, 79 (2005)) we calculate isospin-breaking corrections to the energy\nlevel displacement of the ground state of kaonic hydrogen, investigated by\nMeissner, Raha and Rusetsky (EPJC 35, 349 (2004)) within the non-relativistic\neffective Lagrangian approach based on ChPT by Gasser and Leutwyler. Our\nresults agree well with those by Mei\\ss ner et al.. In addition we calculate\nthe dispersive corrections, caused by the transition K^-p -\u003e bar-K^0n -\u003eK^-p\nwith the bar-K^0n pair on-mass shell. We show also how hypothesis on the\ndominant role of the bar-K^0n-cusp for the S-wave amplitude of low-energy K^-p\nscattering near threshold, used by Meissner et al., can be realized in our\napproach. The result agrees fully with that by Meissner et al..",
    "arxiv_id": "nucl-th/0502030",
    "authors": [
      "A. N. Ivanov",
      "M. Cargnelli",
      "M. Faber",
      "H. Fuhrmann",
      "V. A. Ivanova",
      "J. Marton",
      "N. I. Troitskaya",
      "J. Zmeskal"
    ],
    "categories": [
      "nucl-th",
      "hep-ex",
      "hep-ph",
      "physics.atom-ph"
    ],
    "doi": "10.1088/0954-3899/31/7/020",
    "title": "On isospin-breaking corrections to the energy level displacement of the   ground state of kaonic hydrogen",
    "url": "https://arxiv.org/abs/nucl-th/0502030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "21ec7fe3-c6d1-430b-a731-4b7d6a7e9661",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}