Particle Physics Seminar

Tau lepton physics at the Belle II experiment

by Michel Hernandez Villanueva (DESY Hamburg)

Nußallee 12/1-1.049 - Conference Room II (PI)

Nußallee 12/1-1.049 - Conference Room II



Despite the large success shown by the Standard Model of Elementary Particles, there are still many open questions in nature that may be solved by the introduction of new particles or interactions which, in case of exist, must be observed as deviations from the predictions of highly suppressed processes. Of particular interest in our research are decays of the tau lepton, which provide a clean environment for the extraction of fundamental parameters of the Standard Model, the study of hadronization processes and searches of lepton flavor-violation decays. The Belle II experiment will play a key role in searches for new physics at the “intensity frontier” recording events from electron-positron collisions with world-record luminosities in which a large number of tau lepton pairs are produced. Data taking started in 2019 from collisions at the SuperKEKB accelerator, which is expected to produce 40 times a larger integrated luminosity than the previous generation of B-Factories. In this talk, the tau lepton physics program of the Belle II experiment is presented, describing the first results with early data recorded and illustrating the prospects towards a high luminosity scenario.

Organized by

Oleh Kivernyk, Tatjana Lenz