{
  "id": "1809.07752",
  "version": "v1",
  "published": "2018-09-20T17:37:24.000Z",
  "updated": "2018-09-20T17:37:24.000Z",
  "title": "Observation of two resonances in the $Λ_b^0 π^\\pm$ systems and precise measurement of $Σ_b^\\pm$ and $Σ_b^{*\\pm}$ properties",
  "authors": [
    "LHCb collaboration"
  ],
  "categories": [
    "hep-ex"
  ],
  "abstract": "The first observation of two structures consistent with resonances in the final states $\\Lambda_b^0 \\pi^-$ and $\\Lambda_b^0 \\pi^+$ is reported using samples of $pp$ collision data collected by the LHCb experiment at $\\sqrt{s} = 7$ and $8$ TeV, corresponding to an integrated luminosity of 3 $\\mathrm{fb}^{-1}$. The ground states $\\Sigma_b^\\pm$ and $\\Sigma_b^{*\\pm}$ are also confirmed and their masses and widths are precisely measured.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-09-20T17:37:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "precise measurement",
      "resonances",
      "properties",
      "ground states",
      "first observation"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}