Por Alessio Boletti (LIP).

The Standard Model (SM) of particle physics has successfully explained the electroweak interactions with remarkable precision, surviving decades of experimental scrutiny. However, a growing set of measurements involving flavor-changing transitions has revealed discrepancies between experimental results and SM predictions, the so-called “Flavor Anomalies”. One of the most intriguing analyses focuses on the decay of the B^0 meson into a kaon and a pair of leptons, where the angular distribution of the final-state particles is highly sensitive to virtual contributions of new physics. Recent measurements of this decay have shown significant deviations from the SM expectations. The CMS experiment, leveraging the unprecedented amount of data collected in proton-proton collisions at the LHC, provides an ideal setting for exploring these rare B-hadron decays. In this seminar, the latest measurement of the angular observables of the B0 → K*0 μ+ μ- decay by the CMS Collaboration is presented, along with its implications for understanding the Flavor Anomalies and potential hints of new physics beyond the SM.

Transmissão via Zoom.