Speaker
Ludovica Pirelli
(INFN & Università Tor Vergata)
Description
We perform the complete non-perturbative running of the flavour non-singlet
tensor operator from hadronic to elecroweak scales in $N_{f}$= 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 ($\chi$SF) 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 ($\mu$ $>\sim$2GeV)
we use a SF-type coupling, while at low energies ($\mu$ $<\sim$2GeV)
a Gradient Flow (GF)-type coupling.
Primary authors
Isabel Campos Plasencia
(Consejo Superior de Investigaciones Cientificas (CSIC) (ES))
Mattia Dalla Brida
(CERN)
Giulia Maria de Divitiis
(University of Rome Tor Ver- gata and INFN)
Andrew Lytle
(University of Illinois at Urbana-Champaign)
Mauro Papinutto
(”Sapienza” Universita‘ di Roma)
Ludovica Pirelli
(INFN & Università Tor Vergata)
Anastassios Vladikas
(INFN)
