{
  "id": "1602.07671",
  "version": "v1",
  "published": "2016-02-24T20:55:17.000Z",
  "updated": "2016-02-24T20:55:17.000Z",
  "title": "New physics in the kinematic distributions of $\\bar B\\to D^{(*)}τ^-(\\to\\ell^-\\barν_\\ellν_τ)\\barν_τ$",
  "authors": [
    "Rodrigo Alonso",
    "Andrew Kobach",
    "Jorge Martin Camalich"
  ],
  "comment": "12 pages, 3 figures and 2 tables; comments welcomed",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "We investigate the experimentally-accessible kinematic distributions of the $\\bar B\\to D^{(*)}\\tau^-(\\to\\ell^-\\bar\\nu_\\ell\\nu_\\tau)\\bar\\nu_\\tau$ decays. Specifically, we study the decay rates as functions of the $B\\to D^{(*)}$ transferred squared momentum, the energy of the final charged lepton and the angle of its 3-momentum relative to the 3-momentum of the recoiling $D^{(*)}$. The angular distribution allows to introduce new observables, like a forward-backward asymmetry, which are complementary to the total rates. We present analytic formulas for the observable 3-fold 5-body differential decay rates, study the predictions in the Standard Model and investigate the effects in different new-physics scenarios that we characterize using an effective field theory framework.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-02-24T20:55:17.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "differential decay rates",
      "effective field theory framework",
      "experimentally-accessible kinematic distributions",
      "analytic formulas",
      "final charged lepton"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1423302
    }
  }
}