Master Thesis Open Access

Search for the Rare Decay $B^+ \to \ell^+ \nu_{\ell} \gamma$ with the Full Event Interpretation at the Belle II Experiment

Frank, Laura

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  <dc:creator>Frank, Laura</dc:creator>
  <dc:date>2021-12-10</dc:date>
  <dc:description>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 $\mathcal{L}=63.25 fb^{-1}$.</dc:description>
  <dc:identifier>https://publish.etp.kit.edu/record/22099</dc:identifier>
  <dc:identifier>oai:publish.etp.kit.edu:22099</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>url:https://publish.etp.kit.edu/communities/belle2</dc:relation>
  <dc:relation>url:https://publish.etp.kit.edu/communities/etp</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:title>Search for the Rare Decay $B^+ \to \ell^+ \nu_{\ell} \gamma$ with the Full Event Interpretation at the Belle II Experiment</dc:title>
  <dc:type>info:eu-repo/semantics/masterThesis</dc:type>
  <dc:type>thesis-master-thesis</dc:type>
</oai_dc:dc>
Publication date:
December 10, 2021
Awarding University:
Karlsruhe Institute of Technology (KIT)
Report Number:
ETP-KA/2021-17
Communities:

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