23–27 Sept 2024
Europe/Zurich timezone

Order-$\alpha_s^2$ corrections to the leptonic invariant mass spectrum in $B \to X_c \ell \bar \nu$.

25 Sept 2024, 11:00
30m

Speaker

Mateusz Czaja (University of Warsaw)

Description

Experimental results for moments of the leptonic $q^2$-spectrum in inclusive semileptonic B-meson decays often involve cuts on $q^2$. Therefore, the spectrum itself (rather than its moments only) needs to be evaluated on the theoretical side. We present results of our calculation of $\mathcal{O}(\alpha_s^2)$ corrections to this spectrum that have been obtained via a numerical solution to differential equations for the relevant master integrals. Our findings agree with the recently published analytical results of Fael and Herren.

Authors

Mateusz Czaja (University of Warsaw) Prof. Mikolaj Misiak (University of Warsaw (PL))

Presentation materials