Speaker
Ludovica Pirelli
Description
We perform the complete non-perturbative running of the flavour non-singlet tensor operator from hadronic to electroweak scales in Nf = 3 massless QCD, comparing four different definitions of the renormalisation constant. We use the same configuration ensembles of arXiv:1802.05243, subject to Schrödinger Functional (SF) boundary conditions, whereas we use valence quarks with (𝜒SF) boundary conditions, which results in O(a) improvement for observables after tuning of boundary counterterms. Following the recent ALPHA strategy, we exploit two different running couplings: at high energies (mu > ~ 2GeV) we use a SF-type coupling, while at low energies (mu < ~2GeV) a Gradient Flow (GF)-type coupling.
Primary author
Ludovica Pirelli
