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 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

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 Decay constants of B and D mesons from non-perturbatively improved lattice QCD

2001 ◽  
Vol 619 (1-3) ◽  
pp. 507-537 ◽  
Author(s):  
K.C Bowler ◽  
L Del Debbio ◽  
J.M Flynn ◽  
G.N Lacagnina ◽  
V.I Lesk ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
D Mesons ◽  
Decay Constants

scholarly journals Lattice QCD and QCD sum rule determination of the decay constants of ηc, J/ψ and hc states

2014 ◽  
Vol 883 ◽  
pp. 306-327 ◽  
Author(s):  
Damir Bečirević ◽  
Goran Duplančić ◽  
Bruno Klajn ◽  
Blaženka Melić ◽  
Francesco Sanfilippo
Keyword(s):  
Lattice Qcd ◽  
Sum Rule ◽  
Decay Constants

scholarly journals Charm sea effects on charmonium decay constants and heavy meson masses

2021 ◽  
Vol 81 (8) ◽  
Author(s):  
Salvatore Calì ◽  
Kevin Eckert ◽  
Jochen Heitger ◽  
Francesco Knechtli ◽  
Tomasz Korzec
Keyword(s):  
Lattice Qcd ◽  
Continuum Limit ◽  
Charm Quark ◽  
Heavy Meson ◽  
Charm Quarks ◽  
Decay Constants ◽  
Derivatives Of ◽  
Charm Mass ◽  
The Continuum

AbstractWe estimate the effects on the decay constants of charmonium and on heavy meson masses due to the charm quark in the sea. Our goal is to understand whether for these quantities $${N_\mathrm{f}}=2+1$$ N f = 2 + 1 lattice QCD simulations provide results that can be compared with experiments or whether $${N_\mathrm{f}}=2+1+1$$ N f = 2 + 1 + 1 QCD including the charm quark in the sea needs to be simulated. We consider two theories, $${N_\mathrm{f}}=0$$ N f = 0 QCD and QCD with $${N_\mathrm{f}}=2$$ N f = 2 charm quarks in the sea. The charm sea effects (due to two charm quarks) are estimated comparing the results obtained in these two theories, after matching them and taking the continuum limit. The absence of light quarks allows us to simulate the $${N_\mathrm{f}}=2$$ N f = 2 theory at lattice spacings down to 0.023 fm that are crucial for reliable continuum extrapolations. We find that sea charm quark effects are below 1% for the decay constants of charmonium. Our results show that decoupling of charm works well up to energies of about 500 MeV. We also compute the derivatives of the decay constants and meson masses with respect to the charm mass. For these quantities we again do not see a significant dynamical charm quark effect, albeit with a lower precision. For mesons made of a charm quark and a heavy antiquark, whose mass is twice that of the charm quark, sea effects are only about 1‰ in the ratio of vector to pseudoscalar masses.

Masses and decay constants of the Ds0*(2317) and Ds1(2460) from Nf=2 lattice QCD close to the physical point

2017 ◽  
Vol 96 (7) ◽  
Author(s):  
Gunnar S. Bali ◽  
Sara Collins ◽  
Antonio Cox ◽  
Andreas Schäfer ◽  
Keyword(s):  
Lattice Qcd ◽  
Physical Point ◽  
Decay Constants

Light hadron spectrum and decay constants in quenched lattice QCD

1994 ◽  
Vol 49 (1) ◽  
pp. 474-485 ◽  
Author(s):  
C. R. Allton ◽  
L. Lellouch ◽  
C. T. Sachrajda ◽  
H. Wittig ◽  
R. M. Baxter ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Hadron Spectrum ◽  
Decay Constants ◽  
Light Hadron
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