{
  "id": "1607.00622",
  "version": "v1",
  "published": "2016-07-03T10:28:48.000Z",
  "updated": "2016-07-03T10:28:48.000Z",
  "title": "$B_c\\to B_{sJ}$ form factors and $B_c$ decays into $B_{sJ}$ in covariant light-front approach",
  "authors": [
    "Yu-Ji Shi",
    "Wei Wang",
    "Zhen-Xing Zhao"
  ],
  "comment": "2 figures",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We suggest to study the $B_{s}$ and its excitations $B_{sJ}$ in the $B_c$ decays. We calculate the $B_c\\to B_{sJ}$ and $B_c\\to B_{J}$ form factors within the covariant light-front quark model, where the $B_{sJ}$ and $B_{J}$ denotes an $s$-wave or $p$-wave $\\bar bs$ and $\\bar bd$ meson, respectively. The form factors at $q^2=0$ are directly computed while their $q^2$-distributions are obtained by the extrapolation. The derived form factors are then used to study semileptonic $B_c\\to (B_{sJ},B_{J})\\bar\\ell\\nu$ decays, and nonleptonic $B_c\\to B_{sJ}\\pi$. Branching fractions and polarizations are predicted in the standard model. We find that the branching fractions are sizable and might be accessible at the LHC experiment and future high-energy $e^+e^-$ colliders with a high luminosity at the $Z$-pole. The future experimental measurements are helpful to study the nonperturbative QCD dynamics in the presence of a heavy spectator and also of great value for the spectroscopy study.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-07-03T10:28:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "form factors",
      "covariant light-front approach",
      "covariant light-front quark model",
      "branching fractions",
      "spectroscopy study"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}