B-physics from HQET in two-flavour lattice QCD

We present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf= 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau...

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Detalles Bibliográficos
Autores principales: Bernardoni, F., Blossier, B., Bulava, J., Della Morte, M., Fritzsch, P., Garron, N., Gerardin, A., Heitger, J., von Hippel, G., Simma, H., Sommer, R.
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.22323/1.164.0273
http://cds.cern.ch/record/1490931
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author Bernardoni, F.
Blossier, B.
Bulava, J.
Della Morte, M.
Fritzsch, P.
Garron, N.
Gerardin, A.
Heitger, J.
von Hippel, G.
Simma, H.
Sommer, R.
author_facet Bernardoni, F.
Blossier, B.
Bulava, J.
Della Morte, M.
Fritzsch, P.
Garron, N.
Gerardin, A.
Heitger, J.
von Hippel, G.
Simma, H.
Sommer, R.
author_sort Bernardoni, F.
collection CERN
description We present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf= 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau selection procedure, we are able to systematically control all sources of error. With significantly increased statistics compared to last year, our preliminary results are mb (mb) = 4.22(10)(4)z GeV for the MS b-quark mass, and fB = 193(9)stat (4)_\chi MeV and fBs = 219(12)stat MeV for the B-meson decay constants.
id cern-1490931
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14909312023-03-14T19:37:38Zdoi:10.22323/1.164.0273http://cds.cern.ch/record/1490931engBernardoni, F.Blossier, B.Bulava, J.Della Morte, M.Fritzsch, P.Garron, N.Gerardin, A.Heitger, J.von Hippel, G.Simma, H.Sommer, R.B-physics from HQET in two-flavour lattice QCDParticle Physics - LatticeWe present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf= 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau selection procedure, we are able to systematically control all sources of error. With significantly increased statistics compared to last year, our preliminary results are mb (mb) = 4.22(10)(4)z GeV for the MS b-quark mass, and fB = 193(9)stat (4)_\chi MeV and fBs = 219(12)stat MeV for the B-meson decay constants.We present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf= 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau selection procedure, we are able to systematically control all sources of error. With significantly increased statistics compared to last year, our preliminary results are mb (mb) = 4.22(10)(4)z GeV for the MS b-quark mass, and fB = 193(9)stat (4)_\chi MeV and fBs = 219(12)stat MeV for the B-meson decay constants.arXiv:1210.7932DESY-12-188CERN-PH-TH-2012-289HU-EP-12-35LPT-ORSAY-12-107MS-TP-12-14SFB-CPP-12-78TCDMATH-12-09CERN-PH-TH-2012-289oai:cds.cern.ch:14909312012-10-31
spellingShingle Particle Physics - Lattice
Bernardoni, F.
Blossier, B.
Bulava, J.
Della Morte, M.
Fritzsch, P.
Garron, N.
Gerardin, A.
Heitger, J.
von Hippel, G.
Simma, H.
Sommer, R.
B-physics from HQET in two-flavour lattice QCD
title B-physics from HQET in two-flavour lattice QCD
title_full B-physics from HQET in two-flavour lattice QCD
title_fullStr B-physics from HQET in two-flavour lattice QCD
title_full_unstemmed B-physics from HQET in two-flavour lattice QCD
title_short B-physics from HQET in two-flavour lattice QCD
title_sort b-physics from hqet in two-flavour lattice qcd
topic Particle Physics - Lattice
url https://dx.doi.org/10.22323/1.164.0273
http://cds.cern.ch/record/1490931
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