Speaker
Description
The hadronic decays of heavy mesons offer many probes of physics beyond the Standard Model and new sources of CP violation. These processes are some of the most challenging to accurately predict due to the complicated interactions of the multi-hadron final state under QCD. This complexity calls for the use of ab-initio non-perturbative methods such as lattice QCD, however the presence of multi-particle states in a finite volume adds extra challenges to the calculation.
While the formalism for relating finite-volume dynamics to the real world has been understood for many years for similar decay processes of lighter hadrons e.g. $K\to\pi\pi$, the large mass scales introduced by a D meson lead to further nuances that must be understood and systematically tackled.
We present an exploratory study of the $D\to K\pi$ decay at the SU$(3)_F$ symmetric point, which has the advantage of reducing both analytical complexities and computational costs while methodologies are established.
Using ensembles generated by the OpenLat collaboration and the distillation framework, we present preliminary results for the final-state scattering phase shift and progress towards extracting SU$(3)_F$ $D\to K\pi$ transition amplitudes from three-point correlation functions.
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