B-physics from HQET in two-flavour lattice QCD

F. Bernardoni, B. Blossier, J. Bulava, M. Della Morte, P. Fritzsch, N. Garron, A. Gérardin, J. Heitger, G. von Hippel, H. Simma, R. Sommer

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

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.
OriginalsprogUdefineret/Ukendt
TidsskriftP o S - Proceedings of Science
ISSN1824-8039
StatusUdgivet - 30. okt. 2012

Emneord

  • hep-lat

Citer dette

Bernardoni, F., Blossier, B., Bulava, J., Morte, M. D., Fritzsch, P., Garron, N., ... Sommer, R. (2012). B-physics from HQET in two-flavour lattice QCD. P o S - Proceedings of Science.
Bernardoni, F. ; Blossier, B. ; Bulava, J. ; Morte, M. Della ; Fritzsch, P. ; Garron, N. ; Gérardin, A. ; Heitger, J. ; Hippel, G. von ; Simma, H. ; Sommer, R. / B-physics from HQET in two-flavour lattice QCD. I: P o S - Proceedings of Science. 2012.
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abstract = "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.",
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Bernardoni, F, Blossier, B, Bulava, J, Morte, MD, Fritzsch, P, Garron, N, Gérardin, A, Heitger, J, Hippel, GV, Simma, H & Sommer, R 2012, 'B-physics from HQET in two-flavour lattice QCD', P o S - Proceedings of Science.

B-physics from HQET in two-flavour lattice QCD. / Bernardoni, F.; Blossier, B.; Bulava, J.; Morte, M. Della; Fritzsch, P.; Garron, N.; Gérardin, A.; Heitger, J.; Hippel, G. von; Simma, H.; Sommer, R.

I: P o S - Proceedings of Science, 30.10.2012.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - B-physics from HQET in two-flavour lattice QCD

AU - Bernardoni, F.

AU - Blossier, B.

AU - Bulava, J.

AU - Morte, M. Della

AU - Fritzsch, P.

AU - Garron, N.

AU - Gérardin, A.

AU - Heitger, J.

AU - Hippel, G. von

AU - Simma, H.

AU - Sommer, R.

PY - 2012/10/30

Y1 - 2012/10/30

N2 - 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.

AB - 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.

KW - hep-lat

M3 - Tidsskriftartikel

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

SN - 1824-8039

ER -

Bernardoni F, Blossier B, Bulava J, Morte MD, Fritzsch P, Garron N et al. B-physics from HQET in two-flavour lattice QCD. P o S - Proceedings of Science. 2012 okt 30.