CERN Lattice Coffee

Inclusive semileptonic decays of the $D_s$ meson on the lattice

by Christiane Groß (Universität Bonn)

Europe/Zurich
4/2-037 - TH meeting room (CERN)

4/2-037 - TH meeting room

CERN

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Description

We present a fully non-perturbative computation of the inclusive semileptonic $D_s \to X \ell \nu$ decay and its leptonic moments from lattice QCD.
A first principles computation of such observables has a phenomenological relevance since its comparison with experimental data allows for stringent Standard Model tests in the sector of Flavour physics.
Additionally, this work sets the stage to a future project involving the B meson(s).
The computation, performed employing state-of-the-art ETMC ensembles at the physical point with four lattice spacings and three volumes, is carried out by extracting smeared spectral densities from Euclidean four-point correlation functions.
In this talk, we introduce the HLT method used for extracting spectral densities and present results of the calculations as well as the error analysis.

Zoom Meeting ID
68098777127
Host
Elena Gianolio
Alternative hosts
Tobias Tsang, Pascal Pignereau, Andreas Juttner, Simon Kuberski, Matteo Di Carlo, Felix Benjamin Erben, Jacob Friedrich Finkenrath
Passcode
11900596
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