Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCD

We have computed the form factors for B->pi and D->K(pi) semileptonic decays on the lattice by using full non-perturbative O(a) improvement, in the quenched approximation. Our results are expressed in terms of few parameters which describe the q^2-dependence and normalization of the form facto...

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Detalles Bibliográficos
Autores principales: Abada, A., Becirevic, D., Boucaud, Philippe, Leroy, J.P., Lubicz, V., Mescia, F.
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0550-3213(01)00494-1
http://cds.cern.ch/record/477323
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author Abada, A.
Becirevic, D.
Boucaud, Philippe
Leroy, J.P.
Lubicz, V.
Mescia, F.
author_facet Abada, A.
Becirevic, D.
Boucaud, Philippe
Leroy, J.P.
Lubicz, V.
Mescia, F.
author_sort Abada, A.
collection CERN
description We have computed the form factors for B->pi and D->K(pi) semileptonic decays on the lattice by using full non-perturbative O(a) improvement, in the quenched approximation. Our results are expressed in terms of few parameters which describe the q^2-dependence and normalization of the form factors. After combining our results for B-> pi l nu decay with the measured branching ratio, we obtain |V_{ub}| = (4.1 +/- 1.1)10^{-3}.
id cern-477323
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4773232023-03-14T20:37:55Zdoi:10.1016/S0550-3213(01)00494-1http://cds.cern.ch/record/477323engAbada, A.Becirevic, D.Boucaud, PhilippeLeroy, J.P.Lubicz, V.Mescia, F.Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCDParticle Physics - LatticeWe have computed the form factors for B->pi and D->K(pi) semileptonic decays on the lattice by using full non-perturbative O(a) improvement, in the quenched approximation. Our results are expressed in terms of few parameters which describe the q^2-dependence and normalization of the form factors. After combining our results for B-> pi l nu decay with the measured branching ratio, we obtain |V_{ub}| = (4.1 +/- 1.1)10^{-3}.We have computed the form factors for B --> pi and D --> K(pi) semileptonic decays on the lattice by using full non-perturbative O(a) improvement, in the quenched approximation. Our results are expressed in terms of few parameters which describe the q^2-dependence and normalization of the form factors.We have computed the form factors for B --> pi and D --> K(pi) semileptonic decays on the lattice by using full non-perturbative O(a) improvement, in the quenched approximation. Our results are expressed in terms of few parameters which describe the q^2-dependence and normalization of the form factors.We have computed the form factors for B → π and D → K ( π ) semileptonic decays on the lattice by using full non-perturbative O (a) improvement, in the quenched approximation. Our results are expressed in terms of few parameters which describe the q 2 -dependence and normalization of the form factors.hep-lat/0011065CERN-TH-99-186LPT-ORSAY-00-86RM3-TH-00-18ROMA-1304-00CERN-TH-99-186ROMA-1-1304oai:cds.cern.ch:4773232000-11-15
spellingShingle Particle Physics - Lattice
Abada, A.
Becirevic, D.
Boucaud, Philippe
Leroy, J.P.
Lubicz, V.
Mescia, F.
Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCD
title Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCD
title_full Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCD
title_fullStr Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCD
title_full_unstemmed Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCD
title_short Heavy $\to$ Light semileptonic decays of pseudoscalar mesons from lattice QCD
title_sort heavy $\to$ light semileptonic decays of pseudoscalar mesons from lattice qcd
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/S0550-3213(01)00494-1
http://cds.cern.ch/record/477323
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AT becirevicd heavytolightsemileptonicdecaysofpseudoscalarmesonsfromlatticeqcd
AT boucaudphilippe heavytolightsemileptonicdecaysofpseudoscalarmesonsfromlatticeqcd
AT leroyjp heavytolightsemileptonicdecaysofpseudoscalarmesonsfromlatticeqcd
AT lubiczv heavytolightsemileptonicdecaysofpseudoscalarmesonsfromlatticeqcd
AT mesciaf heavytolightsemileptonicdecaysofpseudoscalarmesonsfromlatticeqcd

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