We present the preliminary results of the non-perturbative running of the flavour non-singlet tensor operator in the high-energy range 2 GeV≲μ≲128 GeV in Nf=3 massless QCD, comparing four different definitions of the renormalisation constant. We use the configuration ensembles of arXiv:1802.05243 and arXiv:1607.06423, subject to Schroedinger functional (SF) boundary conditions, and valence quarks with chirally rotated Schroedinger functional (χSF) boundary conditions. Provided that boundary counterterms have been appropriately tuned, this results in O(a) improvement of the tensor operator, without the need of a dimension-4 Symanzik counterterm (proportional to cT).

RG-running of the tensor currents for N_f= 3 QCD in a XSF setup / Pirelli, Ludovica; Campos Plasencia, Isabel; Dalla Brida, Mattia; de Divitiis, Giulia Maria; Lytle, Andrew; Papinutto, Mauro; Vladikas, Anastassios. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 430:(2023), pp. 1-10. (Intervento presentato al convegno The 39th International symposium on lattice field theory (LATTICE2022) tenutosi a Bonn) [10.22323/1.430.0356].

RG-running of the tensor currents for N_f= 3 QCD in a XSF setup

Papinutto, Mauro
;
2023

Abstract

We present the preliminary results of the non-perturbative running of the flavour non-singlet tensor operator in the high-energy range 2 GeV≲μ≲128 GeV in Nf=3 massless QCD, comparing four different definitions of the renormalisation constant. We use the configuration ensembles of arXiv:1802.05243 and arXiv:1607.06423, subject to Schroedinger functional (SF) boundary conditions, and valence quarks with chirally rotated Schroedinger functional (χSF) boundary conditions. Provided that boundary counterterms have been appropriately tuned, this results in O(a) improvement of the tensor operator, without the need of a dimension-4 Symanzik counterterm (proportional to cT).
2023
The 39th International symposium on lattice field theory (LATTICE2022)
lattice QCD; flavour physics; standard model parameters
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
RG-running of the tensor currents for N_f= 3 QCD in a XSF setup / Pirelli, Ludovica; Campos Plasencia, Isabel; Dalla Brida, Mattia; de Divitiis, Giulia Maria; Lytle, Andrew; Papinutto, Mauro; Vladikas, Anastassios. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 430:(2023), pp. 1-10. (Intervento presentato al convegno The 39th International symposium on lattice field theory (LATTICE2022) tenutosi a Bonn) [10.22323/1.430.0356].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1695576
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