scholarly journals D and B Leptonic Decay Constants from Lattice QCD

2011 ◽  
Author(s):  
James Simone
Keyword(s):  
Lattice Qcd ◽  
Leptonic Decay ◽  
Decay Constants

scholarly journals Leptonic decay constants and in three flavor lattice QCD

2005 ◽  
Vol 140 ◽  
pp. 443-445 ◽  
Author(s):  
J.N. Simone ◽  
C. Aubin ◽  
C. Bernard ◽  
C. DeTar ◽  
M. di Pierro ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Leptonic Decay ◽  
Decay Constants

scholarly journals B - and D -meson leptonic decay constants from four-flavor lattice QCD

2018 ◽  
Vol 98 (7) ◽  
Author(s):  
A. Bazavov ◽  
C. Bernard ◽  
N. Brown ◽  
C. DeTar ◽  
A. X. El-Khadra ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
D Meson ◽  
Leptonic Decay ◽  
Decay Constants ◽  
Four Flavor

LEPTONIC D AND DS DECAYS FROM CLEO-c AND PROSPECTS FOR BESIII

2011 ◽  
Vol 02 ◽  
pp. 97-101
Author(s):  
ROY A. BRIERE
Keyword(s):  
Lattice Qcd ◽  
Leptonic Decay ◽  
Meson Decay ◽  
Matrix Elements ◽  
Ckm Matrix ◽  
Decay Constants ◽  
Ckm Matrix Elements

We first review recent measurements of D → μν and Ds → μν, τν from CLEO-c. These decays are used to determine leptonic decay constants fD and fDs which may be compared to modern Lattice QCD (LQCD) calculations. Such cross-checks can provide confidence in Lattice results for B(s) meson decay constants which are needed to fully exploit data used to extract the CKM matrix elements Vub and Vcb. We also comment briefly on the outlook for further progress at BESIII.

scholarly journals Decay constants ofBandDmesons from improved relativistic lattice QCD with two flavors of sea quarks

2001 ◽  
Vol 64 (3) ◽  
Author(s):  
A. Ali Khan ◽  
S. Aoki ◽  
R. Burkhalter ◽  
S. Ejiri ◽  
M. Fukugita ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Decay Constants

scholarly journals Light-meson leptonic decay rates in lattice QCD+QED

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
M. Di Carlo ◽  
G. Martinelli ◽  
D. Giusti ◽  
V. Lubicz ◽  
C. T. Sachrajda ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Leptonic Decay ◽  
Decay Rates ◽  
Light Meson

Mass spectrum and leptonic decay constants of ground and radially excited states of ηc and ηb in a Bethe–Salpeter equation framework

2015 ◽  
Vol 24 (04) ◽  
pp. 1550030 ◽  
Author(s):  
Hluf Negash ◽  
Shashank Bhatnagar
Keyword(s):  
Mass Spectrum ◽  
Excited States ◽  
Ground State ◽  
Reasonable Agreement ◽  
Equal Mass ◽  
Leptonic Decay ◽  
Decay Constants ◽  
Pseudoscalar Mesons

In this paper, we study the mass spectrum and decay constants of ground state (1S) and radially excited states (2S and 3S) of heavy equal mass pseudoscalar mesons, ηc and ηb. We have employed the framework of Bethe–Salpeter equation (BSE) under Covariant Instantaneous Ansatz (CIA). Our predictions are in reasonable agreement with the data on available states and results of other models.

scholarly journals Heavy–light decay constants in the continuum limit of quenched lattice QCD

2003 ◽  
Vol 672 (1-2) ◽  
pp. 372-386 ◽  
Author(s):  
G.M. de Divitiis ◽  
M. Guagnelli ◽  
F. Palombi ◽  
R. Petronzio ◽  
N. Tantalo
Keyword(s):  
Lattice Qcd ◽  
Continuum Limit ◽  
Decay Constants ◽  
The Continuum

scholarly journals Leptonic decay constants for D-mesons from 3-flavour CLS ensembles

2018 ◽  
Vol 175 ◽  
pp. 13019
Author(s):  
Sara Collins ◽  
Kevin Eckert ◽  
Jochen Heitger ◽  
Stefan Hofmann ◽  
Wolfgang Söldner
Keyword(s):  
Large Volume ◽  
D Mesons ◽  
Leptonic Decay ◽  
Tree Level ◽  
Open Boundary ◽  
Open Boundary Conditions ◽  
Gauge Action ◽  
Decay Constants ◽  
Ongoing Effort ◽  
The Status

e report on the status of an ongoing effort by the RQCD and ALPHA Collaborations, aimed at determining leptonic decay constants of charmed mesons. Our analysis is based on large-volume ensembles generated within the CLS effort, employing Nf = 2 + 1 non-perturbatively O(a) improved Wilson quarks, tree-level Symanzik-improved gauge action and open boundary conditions. The ensembles cover lattice spac-ings from a ≈ 0.09 fm to a ≈ 0.05 fm, with pion masses varied from 420 to 200 MeV. To extrapolate to the physical masses, we follow both the (2ml + ms) = const. and the ms = const. lines in parameter space.

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