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Testing lepton flavour universality in $B^+\to K^+\pi^+\pi^-\ell^+\ell^-$ decays with LHCb
This PhD thesis aims at testing one of the fundamental properties of the Standard Model (SM) of particle physics: the lepton flavour universality (LFU), which states that $W$ and $Z$ bosons are equally coupled to the three lepton generations. In this work, processes mediated by flavour-changing neut...
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| Lenguaje: | eng |
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2023
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| Acceso en línea: | https://dx.doi.org/10.5075/epfl-thesis-10266 http://cds.cern.ch/record/2867156 |