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Related papers: Quenched Hadron Spectrum and Decay Constants on th…

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We present a study of ${\cal O}(2000)$ (quenched) lattice configurations from the APE collaboration, for $6.0\le\beta\le 6.4$ using both the Wilson and the SW-Clover fermion action. We determine the light hadronic spectrum and meson decay…

High Energy Physics - Lattice · Physics 2016-09-01 C. R. Allton , V. Gimenez , L. Giusti , F. Rapuano

In this paper we study O(2000) (quenched) lattice configurations from the APE collaboration, for different lattice volumes and for 6.0 \le beta \le 6.4 using both the Wilson and the SW-Clover fermion actions. We determine the light hadronic…

High Energy Physics - Lattice · Physics 2009-10-28 C. R. Allton , V. Gimenez , L. Giusti , F. Rapuano

We present results for light hadrons composed of both degenerate and non-degenerate quarks in quenched lattice QCD. We calculate masses and decay constants using 60 gauge configurations with an $O(a)$--improved fermion action at $\beta =…

High Energy Physics - Lattice · Physics 2012-08-27 UKQCD Collaboration

We have studied the light hadron spectrum and decay constants for quenched QCD at beta=6.2 on a 24^3x48 lattice. We compare the results obtained using a nearest-neighbour O(a)-improved ("clover") fermion action with those obtained using the…

High Energy Physics - Lattice · Physics 2019-06-05 UKQCD Collaboration , presented by Alan D. Simpson

We compare the light hadron spectrum and decay constants for quenched QCD at $\beta=6.2$ using an $O(a)$-improved nearest-neighbour Wilson fermion action with those obtained using the standard Wilson fermion action on the same set of 18…

High Energy Physics - Lattice · Physics 2012-08-27 UKQCD Collaboration

We present the first study of the light hadron spectrum and decay constants for quenched QCD using an O(a)-improved nearest-neighbour Wilson fermion action at \beta=6.2. We compare the results with those obtained using the standard Wilson…

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 present a study of the heavy-light spectrum and of the D- and B-meson decay constants. The results wer e obtained in the quenched approximation, by using the non-perturbatively improved Clover lattice action at beta=6.2, with a sample of…

High Energy Physics - Lattice · Physics 2010-03-19 D. Becirevic , Ph. Boucaud , J. P. Leroy , V. Lubicz , G. Martinelli , F. Mescia , F. Rapuano

We compute the hadron mass spectrum, the quark masses and the meson decay constants in quenched lattice QCD with non-perturbatively $O(a)$ improved Wilson fermions. The calculations are done for two values of the coupling constant, $\beta =…

High Energy Physics - Lattice · Physics 2008-11-26 M. Göckeler , R. Horsley , H. Perlt , P. Rakow , G. Schierholz , A. Schiller , P. Stephenson

A lattice calculation of the pseudoscalar decay constant of heavy-light mesons is reported. Results are obtained (in the quenched approximation) from lattices at $\beta=6.3$ through a procedure that interpolates between the static…

High Energy Physics - Lattice · Physics 2009-10-22 Claude Bernard , James Labrenz , Amarjit Soni

We compute the leptonic decay constants of heavy-light vector mesons in the quenched approximation. The reliability of lattice computations for heavy quarks is checked by comparing the ratio of vector to pseudoscalar decay constant with the…

High Energy Physics - Lattice · Physics 2008-11-26 C. Bernard , P. Williams , S. Datta , Steven Gottlieb , C. DeTar , Urs M. Heller , C. McNeile , K. Orginos , R. Sugar , D. Toussaint

We present results for heavy-light decay constants, using both propagating quarks and the static approximation, in O(a)-improved, quenched lattice QCD. At beta=6.2 on a 24^3x48 lattice we find f_D=185 +4-3(stat)+42-7(syst) MeV, f_B=160 +6-6…

High Energy Physics - Lattice · Physics 2012-08-27 UKQCD Collaboration

We present results for the light meson masses and decay constants as obtained from calculations with the non-perturbatively improved (`Alpha') action and operators on a 24^3 \times 64 lattice at beta = 6.2, in the quenched approximation.…

High Energy Physics - Lattice · Physics 2007-05-23 D. Becirevic , Ph. Boucaud , L. Giusti , J. P. Leroy , V. Lubicz , G. Martinelli , F. Mescia , F. Rapuano

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 results of a large-scale simulation for the flavor non-singlet light hadron spectrum in quenched lattice QCD with the Wilson quark action. Hadron masses are calculated at four values of lattice spacing in the range $a \approx$…

We present a high statistics study of the D- and B-meson decay constants. The results were obtained by using the Clover and Wilson lattice actions at two different values of the lattice spacing $a$, corresponding to $\beta=6.0$ and 6.2.…

High Energy Physics - Lattice · Physics 2016-09-01 C. R. Allton , L. Conti , M. Crisafulli , L. Giusti , G. Martinelli , F. Rapuano

We report results on a lattice calculation of the heavy-light meson decay constant employing the non-relativistic QCD approach for heavy quark and Wilson action for light quark. Simulations are carried out at $\beta=6.0$ on a $16^3\times…

High Energy Physics - Lattice · Physics 2009-10-22 Shoji Hashimoto

We report results of masses and decay constants of light and charmed pseudo-scalar mesons using lattice QCD with M\"obius domain-wall fermions. Using this formulation we are able to compute pseudo-scalar decay constants through the…

High Energy Physics - Lattice · Physics 2015-12-31 B. Fahy , G. Cossu , S. Hashimoto , T. Kaneko , J. Noaki , M. Tomii

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 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
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