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Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD
We perform a non-perturbative study of the scale-dependent renormalization factors of a multiplicatively renormalizable basis of $\Delta{B}=2$ parity-odd four-fermion operators in quenched lattice QCD. Heavy quarks are treated in the static approximation with various lattice discretizations of the s...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2007
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2007/09/062 http://cds.cern.ch/record/1043765 |
_version_ | 1780912642562457600 |
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author | Palombi, Filippo Papinutto, Mauro Pena, Carlos Wittig, Hartmut |
author_facet | Palombi, Filippo Papinutto, Mauro Pena, Carlos Wittig, Hartmut |
author_sort | Palombi, Filippo |
collection | CERN |
description | We perform a non-perturbative study of the scale-dependent renormalization factors of a multiplicatively renormalizable basis of $\Delta{B}=2$ parity-odd four-fermion operators in quenched lattice QCD. Heavy quarks are treated in the static approximation with various lattice discretizations of the static action. Light quarks are described by non-perturbatively ${\rm O}(a)$ improved Wilson-type fermions. The renormalization group running is computed for a family of Schroedinger functional (SF) schemes through finite volume techniques in the continuum limit. We compute non-perturbatively the relation between the renormalization group invariant operators and their counterparts renormalized in the SF at a low energy scale. Furthermore, we provide non-perturbative estimates for the matching between the lattice regularized theory and all the SF schemes considered. |
id | cern-1043765 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2007 |
record_format | invenio |
spelling | cern-10437652023-04-14T03:07:38Zdoi:10.1088/1126-6708/2007/09/062http://cds.cern.ch/record/1043765engPalombi, FilippoPapinutto, MauroPena, CarlosWittig, HartmutNon-perturbative renormalization of static-light four-fermion operators in quenched lattice QCDParticle Physics - LatticeWe perform a non-perturbative study of the scale-dependent renormalization factors of a multiplicatively renormalizable basis of $\Delta{B}=2$ parity-odd four-fermion operators in quenched lattice QCD. Heavy quarks are treated in the static approximation with various lattice discretizations of the static action. Light quarks are described by non-perturbatively ${\rm O}(a)$ improved Wilson-type fermions. The renormalization group running is computed for a family of Schroedinger functional (SF) schemes through finite volume techniques in the continuum limit. We compute non-perturbatively the relation between the renormalization group invariant operators and their counterparts renormalized in the SF at a low energy scale. Furthermore, we provide non-perturbative estimates for the matching between the lattice regularized theory and all the SF schemes considered.We perform a non-perturbative study of the scale-dependent renormalization factors of a multiplicatively renormalizable basis of $\Delta{B}=2$ parity-odd four-fermion operators in quenched lattice QCD. Heavy quarks are treated in the static approximation with various lattice discretizations of the static action. Light quarks are described by non-perturbatively ${\rm O}(a)$ improved Wilson-type fermions. The renormalization group running is computed for a family of Schroedinger functional (SF) schemes through finite volume techniques in the continuum limit. We compute non-perturbatively the relation between the renormalization group invariant operators and their counterparts renormalized in the SF at a low energy scale. Furthermore, we provide non-perturbative estimates for the matching between the lattice regularized theory and all the SF schemes considered.arXiv:0706.4153CERN-PH-TH-2007-097DESY-07-090MKPH-T-0709DESY-2007-090DESY-07-090CERN-PH-TH-2007-097MKPH-T-0709oai:cds.cern.ch:10437652007-06-29 |
spellingShingle | Particle Physics - Lattice Palombi, Filippo Papinutto, Mauro Pena, Carlos Wittig, Hartmut Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD |
title | Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD |
title_full | Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD |
title_fullStr | Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD |
title_full_unstemmed | Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD |
title_short | Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD |
title_sort | non-perturbative renormalization of static-light four-fermion operators in quenched lattice qcd |
topic | Particle Physics - Lattice |
url | https://dx.doi.org/10.1088/1126-6708/2007/09/062 http://cds.cern.ch/record/1043765 |
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