{
  "id": "1206.2634",
  "version": "v2",
  "published": "2012-06-12T19:57:45.000Z",
  "updated": "2012-09-10T11:36:10.000Z",
  "title": "Explaining B->Dτν, B->D*τνand B->τνin a 2HDM of type III",
  "authors": [
    "Andreas Crivellin",
    "Christoph Greub",
    "Ahmet Kokulu"
  ],
  "comment": "5 pages, 3 figures, version accepted for publication in PRD",
  "journal": "Phys. Rev. D 86, 054014 (2012)",
  "doi": "10.1103/PhysRevD.86.054014",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "Recently, the BaBar collaboration reported first evidence for new physics in B->D\\tau\\nu and B->D*\\tau\\nu. Combining both processes the significance is 3.4\\sigma. This result cannot be explained in a two Higgs doublet model of type II. Furthermore, the CKMfitter group finds a 2.9\\sigma discrepancy between the Standard Model prediction for Br[B->\\tau\\nu] (using Vub from a global fit to the unitary triangle) and the measurements of the B factories. Altogether, these measurements are strong indications for physics beyond the SM in B meson decays to taus. We show that in a two Higgs doublet model of type III it is possible to simultaneously explain \\bdtau and \\bdstau using a single free parameter \\epsilon^u_32. Also Br[B->\\tau\\nu] can be brought into agreement with experiment using \\epsilon^u_31. Furthermore, for Higgs (A^0, H^0, H^+) masses around 500 GeV, as suggested by recent CMS results, all bounds from FCNC processes are satisfied and B->D\\tau\\nu, B->D*\\tau\\nu and B->\\tau\\nu can be explained without a significant degree of fine-tuning.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-09-10T11:36:10.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.20.He",
      "14.80.Fd",
      "12.60.Fr"
    ],
    "keywords": [
      "higgs doublet model",
      "babar collaboration reported first evidence",
      "standard model prediction",
      "ckmfitter group finds",
      "single free parameter"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2012,
      "month": "Sep",
      "volume": 86,
      "number": 5,
      "pages": "054014"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1118049,
      "adsabs": "2012PhRvD..86e4014C"
    }
  }
}