We compute t0, w0 and the topological susceptibility, defined at finite gradient flow time for two-flavour QCD. The use of three lattice spacings and pion masses between 192 and 500 MeV together with a careful error analysis allow to approach the continuum limit of the two-flavour theory despite significant auto-correlations. A comparison to Nf = 0 results shows the size of sea quark effects in t02 , with the topological susceptibility, and low energy observables such as t0=w02 and t0=r02.
Bruno, M., Sommer, R. (2013). On the Nf-dependence of gluonic observables. Intervento presentato a: 31st International Symposium on Lattice Field Theory, LATTICE 2013, Mainz, Germany [10.22323/1.187.0321].
On the Nf-dependence of gluonic observables
Bruno, M;
2013
Abstract
We compute t0, w0 and the topological susceptibility, defined at finite gradient flow time for two-flavour QCD. The use of three lattice spacings and pion masses between 192 and 500 MeV together with a careful error analysis allow to approach the continuum limit of the two-flavour theory despite significant auto-correlations. A comparison to Nf = 0 results shows the size of sea quark effects in t02 , with the topological susceptibility, and low energy observables such as t0=w02 and t0=r02.
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