LHCb; Lepton Flavour Universality; Data Analysis; Particle Physics; Flavour Phyisics
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While the Standard Model of Particle Physics is incomplete and cannot explain phenomena such as the existence of Dark Matter and the large asymmetry between matter and anti-matter in the Universe, we still do not have a clear microscopic evidence of physics Beyond the Standard Model (BSM). Therefore, searches for New Physics effects are currently the dominant experimental effort of the particle physics community, in particular for the LHC experiments ATLAS, CMS and LHCb. While direct searches at general purpose experiments (ATLAS and CMS) are probing unprecedented energy scales (e.g. putting the most stringent constraints on low energy SUSY), no clear sign of New Physics has been seen. The situation is different in flavour physics, where an interesting pattern of deviations from SM expectations seems to be emerging. These Flavour Anomalies consist of measurements of the ratios of branching ratios R(D(*)) = B(B->D(*)tau nu)/B(B->D(*)mu nu) in semileptonic B-meson decays; and measurements of rare decays in LHCb, such as the ratio of branching ratios R(K(*)) and angular observables in the decay B -> K0*µ+µ-. While the statistical significance of each of these anomalies is not large enough to be considered a discovery of New Physics, they all together significantly deviate from the Standard Model. Intriguingly, these anomalies form a coherent pattern, that seems to reveal a hierarchical structure in the flavour of quarks and leptons, which might be the key to shed light into the flavour puzzle.Here I describe a set of measurements that can be performed with the large dataset that have been collected by LHCb in Run2 and that will allow to unambiguously determine if flavour anomalies are a genuine sign of BSM physics. I expect with my research to either find evidence for new phenomena or to place stringent bounds on the size of any New Physics effects.