{
  "id": "2311.17678",
  "version": "v1",
  "published": "2023-11-29T14:40:39.000Z",
  "updated": "2023-11-29T14:40:39.000Z",
  "title": "Phenomenological analysis of the quasi-two-body $B \\to D (R\\to) K π$ decays in PQCD Approach",
  "authors": [
    "Wen-Sheng Fang",
    "Zhi-Tian Zou",
    "Ying Li"
  ],
  "comment": "15 pages, 1 figure",
  "categories": [
    "hep-ph"
  ],
  "abstract": "The quasi-two-body $B \\to D (R\\to) K \\pi$ decays are calculated in PQCD approach based on the $k_T$ factorization by introducing the wave functions of $K\\pi$ pair associated with the resonances $K^*(892)$, $K_0^*(1430)$ and $K_2^*(1430)$. The results show that most branching fractions are at the order of $10^{-7}$ or even smaller. However, for $B^0\\to D^0(K^*\\to)K\\pi$ decays enhanced by the CKM element $V_{cs}$, their branching fractions are at the order of $10^{-6}$, which are measurable in the current ongoing experiments. Based on the narrow-width-approximation we also extract the branching fractions of the corresponding two-body $B \\to D K^*$ decays and the results are in good agreement with previous predictions. Because these decays are only governed by the tree operators, there are no $CP$ asymmetries in these decays in the standard model.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-11-29T14:40:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "pqcd approach",
      "phenomenological analysis",
      "quasi-two-body",
      "branching fractions",
      "wave functions"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}