Speaker
Roger Horsley
(University of Edinburgh)
Description
Numerical lattice QCD simulations determine mass (or other) ratios
but not the scale itself, which has to be determined from experiment.
A hadron mass such as the proton mass or decay constant such as
the pion decay constant are often used for this purpose.
We discuss here the advantages of setting the scale using
a flavour-singlet quantity, which in conjunction with simulations
keeping the average quark mass constant allow SU(3) flavour breaking
expansions to be used. This is illustrated using 2+1 clover fermions,
and a determination of the Wilson flow scales t0 and w0 is given.
Primary author
Roger Horsley
(University of Edinburgh)
