Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude

We compute the 1-loop chiral corrections to the bag parameters which are needed for the discussion of the SUSY K-Kbar mixing problem in both finite and infinite volume. We then show how the bag parameters can be combined among themselves and with some auxiliary quantities and thus sensibly reduce th...

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Detalles Bibliográficos
Autores principales: Becirevic, Damir, Villadoro, Giovanni
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.70.094036
http://cds.cern.ch/record/789385
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author Becirevic, Damir
Villadoro, Giovanni
author_facet Becirevic, Damir
Villadoro, Giovanni
author_sort Becirevic, Damir
collection CERN
description We compute the 1-loop chiral corrections to the bag parameters which are needed for the discussion of the SUSY K-Kbar mixing problem in both finite and infinite volume. We then show how the bag parameters can be combined among themselves and with some auxiliary quantities and thus sensibly reduce the systematic errors due to chiral extrapolations as well as those due to finite volume artefacts present in the results obtained from lattice QCD. We also show that in some cases these advantages remain as such even after including the 2-loop chiral corrections. Similar discussion is also made for the K --> pi electro-weak penguin operators.
id cern-789385
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
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spelling cern-7893852023-03-14T17:18:45Zdoi:10.1103/PhysRevD.70.094036http://cds.cern.ch/record/789385engBecirevic, DamirVilladoro, GiovanniRemarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitudeParticle Physics - LatticeWe compute the 1-loop chiral corrections to the bag parameters which are needed for the discussion of the SUSY K-Kbar mixing problem in both finite and infinite volume. We then show how the bag parameters can be combined among themselves and with some auxiliary quantities and thus sensibly reduce the systematic errors due to chiral extrapolations as well as those due to finite volume artefacts present in the results obtained from lattice QCD. We also show that in some cases these advantages remain as such even after including the 2-loop chiral corrections. Similar discussion is also made for the K --> pi electro-weak penguin operators.We compute the 1-loop chiral corrections to the bag parameters which are needed for the discussion of the SUSY K-Kbar mixing problem in both finite and infinite volume. We then show how the bag parameters can be combined among themselves and with some auxiliary quantities and thus sensibly reduce the systematic errors due to chiral extrapolations as well as those due to finite volume artefacts present in the results obtained from lattice QCD. We also show that in some cases these advantages remain as such even after including the 2-loop chiral corrections. Similar discussion is also made for the K --> pi electro-weak penguin operators.hep-lat/0408029CERN-PH-TH-2004-135LPT-ORSAY-04-57ROMA-1384-04CERN-PH-TH-2004-135LPT-ORSAY-2004-57ROMA-1-1384oai:cds.cern.ch:7893852004
spellingShingle Particle Physics - Lattice
Becirevic, Damir
Villadoro, Giovanni
Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude
title Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude
title_full Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude
title_fullStr Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude
title_full_unstemmed Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude
title_short Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude
title_sort remarks on the hadronic matrix elements relevant to the susy k-kbar mixing amplitude
topic Particle Physics - Lattice
url https://dx.doi.org/10.1103/PhysRevD.70.094036
http://cds.cern.ch/record/789385
work_keys_str_mv AT becirevicdamir remarksonthehadronicmatrixelementsrelevanttothesusykkbarmixingamplitude
AT villadorogiovanni remarksonthehadronicmatrixelementsrelevanttothesusykkbarmixingamplitude

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