{
  "id": "1109.1112",
  "version": "v1",
  "published": "2011-09-06T08:42:47.000Z",
  "updated": "2011-09-06T08:42:47.000Z",
  "title": "Anatomy of $B^0_{s,d} \\to J/ψf_0(980)$",
  "authors": [
    "Robert Fleischer",
    "Robert Knegjens",
    "Giulia Ricciardi"
  ],
  "comment": "32 pages, 7 figures",
  "journal": "Eur.Phys.J. C71 (2011) 1832",
  "doi": "10.1140/epjc/s10052-011-1832-x",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "The $B^0_s\\to J/\\psi f_0(980)$ decay offers an interesting experimental alternative to the well-known $B^0_s\\to J/\\psi \\phi$ channel for the search of CP-violating New-Physics contributions to $B^0_s$--$\\bar B^0_s$ mixing. As the hadronic structure of the $f_0(980)$ has not yet been settled, we take a critical look at the implications for the relevant observables and address recent experimental data. It turns out that the effective lifetime of $B^0_s\\to J/\\psi f_0(980)$ and its mixing-induced CP asymmetry $S$ are quite robust with respect to hadronic effects and thereby allow us to search for a large CP-violating $B^0_s$--$\\bar B^0_s$ mixing phase $\\phi_s$, which is tiny in the Standard Model. However, should small CP violation, i.e. in the range $-0.1\\lsim S\\lsim 0$, be found in $B^0_s\\to J/\\psi f_0(980)$, it will be crucial to constrain hadronic corrections in order to distinguish possible New-Physics effects from the Standard Model. We point out that $B^0_d\\to J/\\psi f_0(980)$, which has not yet been measured, is a key channel in this respect and discuss the physics potential of this decay.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-09-06T08:42:47.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "standard model",
      "constrain hadronic corrections",
      "small cp violation",
      "cp asymmetry",
      "cp-violating new-physics contributions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal C",
      "year": 2011,
      "month": "Dec",
      "volume": 71,
      "pages": 1832
    },
    "note": {
      "typesetting": "TeX",
      "pages": 32,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 926540,
      "adsabs": "2011EPJC...71.1832F"
    }
  }
}