Decay constants of B-mesons from non-perturbative HQET with two light dynamical quarks
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Fabio Bernardoni
- Benoit Blossier
- John Bulava
- Michele Della Morte
- Patrick Fritzsch
- Nicolas Garron
- Antoine Gerardin
- Jochen Heitger
- Georg von Hippel
- Hubert Simma
- Rainer Sommer
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000340048900061&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1016/j.physletb.2014.06.051
- eISSN
- 1873-2445
- Externe Identifier
- Clarivate Analytics Document Solution ID: AM7LO
- ISSN
- 0370-2693
- Zeitschrift
- PHYSICS LETTERS B
- Schlüsselwörter
- Lattice QCD
- Heavy Quark Effective Theory
- Bottom quarks
- Meson decay
- Paginierung
- 349 - 356
- Datum der Veröffentlichung
- 2014
- Status
- Published
- Titel
- Decay constants of B-mesons from non-perturbative HQET with two light dynamical quarks
- Sub types
- Article
- Ausgabe der Zeitschrift
- 735
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Autoren
- Fabio Bernardoni
- Benoît Blossier
- John Bulava
- Michele Della Morte
- Patrick Fritzsch
- Nicolas Garron
- Antoine Gérardin
- Jochen Heitger
- Georg von Hippel
- Hubert Simma
- Rainer Sommer
- DOI
- 10.1016/j.physletb.2014.06.051
- ISSN
- 0370-2693
- Zeitschrift
- Physics Letters B
- Sprache
- en
- Paginierung
- 349 - 356
- Datum der Veröffentlichung
- 2014
- Status
- Published
- Herausgeber
- Elsevier BV
- Herausgeber URL
- http://dx.doi.org/10.1016/j.physletb.2014.06.051
- Datum der Datenerfassung
- 2022
- Titel
- Decay constants of B-mesons from non-perturbative HQET with two light dynamical quarks
- Ausgabe der Zeitschrift
- 735
Datenquelle: Crossref
- Abstract
- We present a computation of B-meson decay constants from lattice QCD simulations within the framework of Heavy Quark Effective Theory for the b-quark. The next-to-leading order corrections in the HQET expansion are included non-perturbatively. Based on Nf=2 gauge field ensembles, covering three lattice spacings a (0.08-0.05)fm and pion masses down to 190MeV, a variational method for extracting hadronic matrix elements is used to keep systematic errors under control. In addition we perform a careful autocorrelation analysis in the extrapolation to the continuum and to the physical pion mass limits. Our final results read fB=186(13)MeV, fBs=224(14)MeV and fBs/fB=1.203(65). A comparison with other results in the literature does not reveal a dependence on the number of dynamical quarks, and effects from truncating HQET appear to be negligible.
- Autoren
- F Bernardoni
- B Blossier
- J Bulava
- M Della Morte
- P Fritzsch
- N Garron
- A Gérardin
- J Heitger
- G von Hippel
- H Simma
- R Sommer
- Autoren-URL
- http://arxiv.org/abs/1404.3590v1
- Schlüsselwörter
- hep-lat
- hep-lat
- hep-ph
- Notes
- 16 pages including figures and tables
- Datum der Veröffentlichung
- 2014
- Herausgeber URL
- http://dx.doi.org/10.1016/j.physletb.2014.06.051
- Datum der Datenerfassung
- 2014
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2014
- Titel
- Decay constants of B-mesons from non-perturbative HQET with two light dynamical quarks
Files
1404.3590v1.pdf
Datenquelle: arXiv
- Beziehungen:
- Eigentum von