Clover improvement for stout-smeared 2+1 flavour SLiNC fermions: non-perturbative results

Understand

We discuss an action in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term.

• With the (tree level) Symanzik improved gluon action this constitutes the Stout Link Non-perturbative Clover or SLiNC action.
• To cancel O(a) terms the clover coefficient, csw, has to be tuned.
• We present here preliminary results of a non-perturbative determination of csw using the Schrodinger functional and as a by-product also a determination of the critical hopping parameter.