Cargando…
Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD
Tensor currents are the only quark bilinear operators lacking a non-perturbative determination of their renormalisation group (RG) running between hadronic and electroweak scales. We develop the setup to carry out the computation in lattice QCD via standard recursive finite-size scaling techniques,...
Autores principales: | , |
---|---|
Lenguaje: | eng |
Publicado: |
2017
|
Materias: | |
Acceso en línea: | http://cds.cern.ch/record/2280702 |
_version_ | 1780955534956953600 |
---|---|
author | Pena, Carlos Preti, David |
author_facet | Pena, Carlos Preti, David |
author_sort | Pena, Carlos |
collection | CERN |
description | Tensor currents are the only quark bilinear operators lacking a non-perturbative determination of their renormalisation group (RG) running between hadronic and electroweak scales. We develop the setup to carry out the computation in lattice QCD via standard recursive finite-size scaling techniques, and provide results for the RG running of tensor currents in $N_f = 0$ and $N_f = 2$ QCD in the continuum for various Schr\"odinger Functional schemes. The matching factors between bare and renormalisation group invariant currents are also determined for a range of values of the lattice spacing relevant for large-volume simulations, thus enabling a fully non-perturbative renormalization of physical amplitudes mediated by tensor currents. |
id | cern-2280702 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2017 |
record_format | invenio |
spelling | cern-22807022021-05-03T08:18:28Zhttp://cds.cern.ch/record/2280702engPena, CarlosPreti, DavidNon-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCDhep-latParticle Physics - LatticeTensor currents are the only quark bilinear operators lacking a non-perturbative determination of their renormalisation group (RG) running between hadronic and electroweak scales. We develop the setup to carry out the computation in lattice QCD via standard recursive finite-size scaling techniques, and provide results for the RG running of tensor currents in $N_f = 0$ and $N_f = 2$ QCD in the continuum for various Schr\"odinger Functional schemes. The matching factors between bare and renormalisation group invariant currents are also determined for a range of values of the lattice spacing relevant for large-volume simulations, thus enabling a fully non-perturbative renormalization of physical amplitudes mediated by tensor currents.IFT-UAM-CSIC-17-050FTUAM-17-10arXiv:1706.06674oai:cds.cern.ch:22807022017 |
spellingShingle | hep-lat Particle Physics - Lattice Pena, Carlos Preti, David Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD |
title | Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD |
title_full | Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD |
title_fullStr | Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD |
title_full_unstemmed | Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD |
title_short | Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD |
title_sort | non-perturbative renormalization of tensor currents: strategy and results for $n_f = 0$ and $n_f = 2$ qcd |
topic | hep-lat Particle Physics - Lattice |
url | http://cds.cern.ch/record/2280702 |
work_keys_str_mv | AT penacarlos nonperturbativerenormalizationoftensorcurrentsstrategyandresultsfornf0andnf2qcd AT pretidavid nonperturbativerenormalizationoftensorcurrentsstrategyandresultsfornf0andnf2qcd |