Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark density

We present the results of a non-perturbative determination of the pion matrix element of the twist-2 operator corresponding to the average momentum of non-singlet quark densities. The calculation is made within the Schroedinger functional scheme. We report the results of simulations done with the st...

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Detalles Bibliográficos
Autores principales: Guagnelli, M., Jansen, K., Petronzio, R.
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(00)01138-2
http://cds.cern.ch/record/457398
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author Guagnelli, M.
Jansen, K.
Petronzio, R.
author_facet Guagnelli, M.
Jansen, K.
Petronzio, R.
author_sort Guagnelli, M.
collection CERN
description We present the results of a non-perturbative determination of the pion matrix element of the twist-2 operator corresponding to the average momentum of non-singlet quark densities. The calculation is made within the Schroedinger functional scheme. We report the results of simulations done with the standard Wilson action and with the non-perturbatively improved clover action and we show that their ratio correctly extrapolates, in the continuum limit, to a value compatible with the residual correction factor expected from perturbation theory.
id cern-457398
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4573982023-03-14T20:01:29Zdoi:10.1016/S0370-2693(00)01138-2http://cds.cern.ch/record/457398engGuagnelli, M.Jansen, K.Petronzio, R.Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark densityParticle Physics - LatticeWe present the results of a non-perturbative determination of the pion matrix element of the twist-2 operator corresponding to the average momentum of non-singlet quark densities. The calculation is made within the Schroedinger functional scheme. We report the results of simulations done with the standard Wilson action and with the non-perturbatively improved clover action and we show that their ratio correctly extrapolates, in the continuum limit, to a value compatible with the residual correction factor expected from perturbation theory.We present the results of a non-perturbative determination of the pion matrix element of the twist-2 operator corresponding to the average momentum of non-singlet quark densities. The calculation is made within the Schroedinger functional scheme. We report the results of simulations done with the standard Wilson action and with the non-perturbatively improved clover action and we show that their ratio correctly extrapolates, in the continuum limit, to a value compatible with the residual correction factor expected from perturbation theory.We present the results of a non-perturbative determination of the pion matrix element of the twist-2 operator corresponding to the average momentum of non-singlet quark densities. The calculation is made within the Schrödinger functional scheme. We report the results of simulations done with the standard Wilson action and with the non-perturbatively improved clover action and we show that their ratio correctly extrapolates, in the continuum limit, to a value compatible with the residual correction factor expected from perturbation theory.hep-lat/0009006CERN-TH-2000-259NIC-DESY-00-001CERN-TH-2000-259oai:cds.cern.ch:4573982000-09-07
spellingShingle Particle Physics - Lattice
Guagnelli, M.
Jansen, K.
Petronzio, R.
Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark density
title Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark density
title_full Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark density
title_fullStr Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark density
title_full_unstemmed Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark density
title_short Lattice hadron matrix elements with the Schroedinger functional: the case of the first moment of non-singlet quark density
title_sort lattice hadron matrix elements with the schroedinger functional: the case of the first moment of non-singlet quark density
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/S0370-2693(00)01138-2
http://cds.cern.ch/record/457398
work_keys_str_mv AT guagnellim latticehadronmatrixelementswiththeschroedingerfunctionalthecaseofthefirstmomentofnonsingletquarkdensity
AT jansenk latticehadronmatrixelementswiththeschroedingerfunctionalthecaseofthefirstmomentofnonsingletquarkdensity
AT petronzior latticehadronmatrixelementswiththeschroedingerfunctionalthecaseofthefirstmomentofnonsingletquarkdensity

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