B-anomalies, subleading contributions to incluive penguin decays and refactorisation

by Prof. Tobias Hurth

Thursday 9 Jul 2026, 16:00 → 17:00 Europe/Berlin

CP-03-123 (TU Dortmund)

The inclusive penguin decays $\bar{B} \to X_s \gamma$, which can be measured with great precision at Belle II, will shed light on the so-called B-anomalies. The subleading resolved contributions represent one of the largest uncertainties of these inclusive decays. Presently radiative corrections are calculated within soft-collinear effective theory  to reduce them significantly. Here a factorisation theorem for the resolved contributions is crucial and the new method of refactorisation plays an important role.