December 10, 2021 Master Thesis Open Access

Frank, Laura

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{
  "abstract": "<p>The ${e^+e^-}$ collider experiment Belle II at the SuperKEKB accelerator in Japan produces charged and neutral B-meson pairs whose decays offer a great variety of analyses including the rare decay $B^+ \\to \\ell^+ \\nu_{\\ell} \\gamma$. Although no B-factory has yet to observe this decay, the existing measurements provide an important limit on the first inverse momentum $\\lambda_{\\mathrm{B}}$ of the light-cone distribution amplitude (LCDA) of the B-meson. This thesis presents a simultaneous analysis of $B^+ \\to \\ell^+ \\nu_{\\ell} \\gamma$ and $B^+ \\to \\pi^0 \\ell^+ \\nu_{\\ell}$ decays with the Full Event Interpretation tagging algorithm. The analysis is validated with a Belle II data set according to an integrated luminosity of $\\mathcal{L}=63.25 fb^{-1}$.</p>", 
  "author": [
    {
      "family": "Frank, Laura"
    }
  ], 
  "id": "22099", 
  "issued": {
    "date-parts": [
      [
        2021, 
        12, 
        10
      ]
    ]
  }, 
  "language": "eng", 
  "title": "Search for the Rare Decay $B^+ \\to \\ell^+ \\nu_{\\ell} \\gamma$ with the Full Event Interpretation at the Belle II Experiment", 
  "type": "thesis"
}