Speaker
Ryan Hill
(University of Edinburgh)
Description
In this talk I will present ongoing work to calculate quark-disconnected isospin-breaking corrections to leptonic meson decays at leading order on RBC-UKQCD physical-point domain-wall ensembles. We follow on from previous work at non-physical masses by making use of efficient estimators to address the computational challenges in estimating the relevant quark-disconnected subdiagrams. Efficiently estimating these diagrams at near-physical masses lowers the computational barrier for ab-initio electro-unquenched calculations of precision observables, such as hadronic mass-splittings and meson decay constants. I will present preliminary findings at a coarse lattice spacing and provide an outlook for the future.
Primary author
Ryan Hill
(University of Edinburgh)
