{
  "id": "hep-ph/0311338",
  "version": "v2",
  "published": "2003-11-26T13:47:33.000Z",
  "updated": "2004-06-23T11:53:42.000Z",
  "title": "Top Squarks and Bottom Squarks in the MSSM with Complex Parameters",
  "authors": [
    "A. Bartl",
    "S. Hesselbach",
    "K. Hidaka",
    "T. Kernreiter",
    "W. Porod"
  ],
  "comment": "31 pages, 8 figures, comments and references added, conclusions unchanged; version to appear in Phys. Rev. D",
  "journal": "Phys.Rev.D70:035003,2004",
  "doi": "10.1103/PhysRevD.70.035003",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "We present a phenomenological study of top squarks (~t_1,2) and bottom squarks (~b_1,2) in the Minimal Supersymmetric Standard Model (MSSM) with complex parameters A_t, A_b, \\mu and M_1. In particular we focus on the CP phase dependence of the branching ratios of (~t_1,2) and (~b_1,2) decays. We give the formulae of the two-body decay widths and present numerical results. We find that the effect of the phases on the (~t_1,2) and (~b_1,2) decays can be quite significant in a large region of the MSSM parameter space. This could have important implications for (~t_1,2) and (~b_1,2) searches and the MSSM parameter determination in future collider experiments. We have also estimated the accuracy expected in the determination of the parameters of ~t_i and ~b_i by a global fit of the measured masses, decay branching ratios and production cross sections at e^+ e^- linear colliders with polarized beams. Analysing two scenarios, we find that the fundamental parameters apart from A_t and A_b can be determined with errors of 1% to 2%, assuming an integrated luminosity of 1 ab^-1 and a sufficiently large c.m.s. energy to produce also the heavier ~t_2 and ~b_2 states. The parameter A_t can be determined with an error of 2 - 3%, whereas the error on A_b is likely to be of the order of 50%.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2004-06-23T11:53:42.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.60.Jv",
      "14.80.Ly"
    ],
    "keywords": [
      "complex parameters",
      "minimal supersymmetric standard model",
      "production cross sections",
      "two-body decay widths",
      "fundamental parameters apart"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 31,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 634062
    }
  }
}