English
Related papers

Related papers: Precision computation of the leptonic D_s-meson de…

200 papers

We present a precise determination of the leptonic decay constant F_D(s) of the D(s)-meson in quenched lattice QCD. This work is particularly focused on the analysis and discussion of all sources of systematic errors. We simulate directly…

High Energy Physics - Lattice · Physics 2015-06-25 Andreas Juttner , Juri Rolf

We present a lattice determination of the leptonic decay constant F_Ds of the Ds-meson using its mass and F_K as experimental input. Setting the scale with F_K=160 MeV, our final result is F_Ds = 252(9) MeV. The error contains all…

High Energy Physics - Lattice · Physics 2009-11-10 Andreas Juettner , Juri Rolf

We update our previous determination of both the decay constant and the mass of the $D_s$ meson using the Highly Improved Staggered Quark formalism. We include additional results at two finer values of the lattice spacing along with…

High Energy Physics - Lattice · Physics 2010-12-24 C. T. H. Davies , C. McNeile , E. Follana , G. P. Lepage , H. Na , J. Shigemitsu

We determine the masses and decay constants of pseudoscalar mesons $ D $, $ D_s $, and $ K $ in quenched lattice QCD with exact chiral symmetry. For 100 gauge configurations generated with single-plaquette action at $ \beta = 6.1 $ on the $…

High Energy Physics - Phenomenology · Physics 2011-02-16 Ting-Wai Chiu , Tung-Han Hsieh , Jon-Yu Lee , Pei-Hua Liu , Hsiu-Ju Chang

We improve a previous quenched result for heavy-light pseudoscalar meson decay constants with the light quark taken to be the strange quark. A finer lattice resolution (a ~ 0.05 fm) in the continuum limit extrapolation of the data computed…

High Energy Physics - Lattice · Physics 2008-11-26 Michele Della Morte , Stephan Durr , Damiano Guazzini , Jochen Heitger , Andreas Juttner , Rainer Sommer

We present a lattice QCD computation and preliminary results for the leptonic decay constants of the pseudoscalar mesons $K$, $D$ and $D_{s}$ in the isosymmetric QCD limit. The computation is based on simulations of $N_f = 2+1+1$ dynamical…

High Energy Physics - Lattice · Physics 2021-10-05 P. Dimopoulos , R. Frezzotti , M. Garofalo , S. Simula

We present a determination of the decay constants of the $D$ and $D_s$ mesons from lattice QCD, each with a total error of about 2%, approximately a factor of three better than previous calculations. We have been able to achieve this…

High Energy Physics - Lattice · Physics 2011-06-15 Eduardo Follana

The phenomenology of the pseudo scalar mesons D_s and B_s and of the vector mesons D_s* and B_s* was investigated in simulations of quenched lattice QCD. The work is particularly focused on the continuum limit and the minimisation of all…

High Energy Physics - Lattice · Physics 2007-05-23 Andreas Juttner

We compute decay constants of heavy-light mesons in quenched lattice QCD with a lattice spacing of a ~ 0.04 fm using non-perturbatively O(a) improved Wilson fermions and O(a) improved currents. We obtain f_{D_s} = 220(6)(5)(11) MeV, f_D =…

High Energy Physics - Lattice · Physics 2008-11-26 A. Ali Khan , V. Braun , T. Burch , M Göckeler , G. Lacagnina , A. Schäfer , G. Schierholz

We review recent progress in the calculation of the decay constants $f_{D}$ and $f_{D_s}$ from lattice QCD. We focus particularly on simulations with $N_f=2+1$ and $N_f=2+1+1$ and simulations with close to physical light quark masses.

High Energy Physics - Lattice · Physics 2017-02-20 Justus Tobias Tsang

We present a lattice QCD calculation of the pseudoscalar decay constants fK, fD and fDs performed using the gauge configurations produced by the European Twisted Mass Collaboration with Nf = 2 + 1 + 1 dynamical quarks, which include in the…

High Energy Physics - Lattice · Physics 2015-03-25 N. Carrasco , P. Dimopoulos , R. Frezzotti , P. Lami , V. Lubicz , F. Nazzaro , E. Picca , L. Riggio , G. C. Rossi , F. Sanfilippo , S. Simula , C. Tarantino

We present results for the leptonic decay constants of the D and D$_{\rm s}$ mesons from $N_{\rm f}=2+1$ lattice QCD. We employ a set of 49 high statistics gauge ensembles generated by the Coordinated Lattice Simulations (CLS) effort…

High Energy Physics - Lattice · Physics 2024-05-08 Simon Kuberski , Fabian Joswig , Sara Collins , Jochen Heitger , Wolfgang Söldner

We present the results of a lattice QCD calculation of the pseudoscalar meson decay constants f_K, f_D and f_Ds, performed with N_f=2 dynamical fermions. The simulation is carried out with the tree-level improved Symanzik gauge action and…

High Energy Physics - Lattice · Physics 2010-10-12 The ETM Collaboration , B. Blossier , V. Lubicz , S. Simula , C. Tarantino

The masses and decay constants of pseudoscalar mesons $ D $, $ D_s $, and $ K $ are determined in quenched lattice QCD with exact chiral symmetry. For 100 gauge configurations generated with single-plaquette action at $ \beta = 6.1 $ on the…

High Energy Physics - Lattice · Physics 2011-02-16 Ting-Wai Chiu , Tung-Han Hsieh , Jon-Yu Lee , Pei-Hua Liu , Hsiu-Ju Chang

We compute the decay constants for the heavy--light pseudoscalar mesons in the quenched approximation and continuum limit of lattice QCD. Within the Schrodinger Functional framework, we make use of the step scaling method, which has been…

High Energy Physics - Lattice · Physics 2015-06-25 G. M. de Divitiis , M. Guagnelli , F. Palombi , R. Petronzio , N. Tantalo

We present the results of a lattice QCD calculation of the pseudoscalar meson decay constants fpi, fK, fD and fDs, performed with Nf=2 dynamical fermions. The simulation is carried out with the tree-level improved Symanzik gauge action and…

We present a computation of the charm quark's mass and the leptonic D-meson decay constants f_D and f_{D_s} in two-flavour lattice QCD with non-perturbatively O(a) improved Wilson quarks. Our analysis is based on the CLS configurations at…

High Energy Physics - Lattice · Physics 2013-12-31 Jochen Heitger , Georg M. von Hippel , Stefan Schaefer , Francesco Virotta

We present a high statistics study of the leptonic decay constant $f_P$ of heavy pseudoscalar mesons using propagating heavy Wilson quarks within the quenched approximation, on lattices covering sizes from about 0.7~fm to 2~fm. Varying…

High Energy Physics - Lattice · Physics 2009-10-22 C. Alexandrou , S. Güsken , F. Jegerlehner , K. Schilling , G. Siegert , R. Sommer

We calculate the leptonic decay constants of heavy-light pseudoscalar mesons with charm and bottom quarks in lattice quantum chromodynamics on four-flavor QCD gauge-field configurations with dynamical $u$, $d$, $s$, and $c$ quarks. We…

We present results for the B_s meson decay constant f_{B_s} from simulations at three lattice spacings in the range a^{-1}=1.1 to 2.6 GeV using NRQCD heavy quarks and clover light quarks in the quenched approximation. We study scaling of…

High Energy Physics - Lattice · Physics 2010-01-18 S. Collins , C. T. H. Davies , J. Hein , G. P. Lepage , C. J. Morningstar , J. Shigemitsu , J. Sloan
‹ Prev 1 2 3 10 Next ›