Speaker
Description
Lepton flavour universality is conserved in the Standard Model, however still
nowadays, many experimental measurements of lepton flavor universality ratios
exhibit a non-negligible tension with respect the theory predictions, which has a
notable low uncertainty. This makes LFU measurements a gateway for the search of
new physics which must be investigated to solve this tension. The LHCb measurement
provides several measurements that contribute to this tension, with the newest
measurement of the LFU ratios R(D) and R(D) using three prong tau hadronic decays,
which will be presented in this talk. The measurement provides an independent and
complementary addition to the global combination of both R(D) and R(D), which
could potentially accentuate this tension.
