3 papers
hep-ph2024
Total decay rates of mesons at NNLO-QCD
Manuel Egner, Matteo Fael, Alexander Lenz +4
We update the Standard Model (SM) predictions for the lifetimes of the , and mesons within the heavy quark expansion (HQE), including the recently determined NNLO-…
hep-ph2024
Nonleptonic -meson decays to next-to-next-to-leading order
Manuel Egner, Matteo Fael, Kay Schönwald +1
We compute next-to-next-to-leading order QCD corrections to the partonic processes and , which constitute the dominant decay channels in standa…
hep-ph2024
Nonleptonic B-decays at NNLO
Manuel Egner
The decay of B mesons can be predicted within the Heavy Quark Expansion as the decay of a free bottom quark plus corrections which are suppressed by powers of . This contrib…