$\mathrm{O}(a)$ improvement of the flavour singlet scalar density in a setup with Wilson fermions

Pia Leonie Jones Petrak, Jochen Heitger, Fabian Joswig

We report on our Ward identity determination of the $\mathrm{O}(a)$ improvement coefficient for the flavour singlet scalar density, namely $g_{\mathrm{S}}$, from three-flavour lattic…