Light hadron spectrum and decay constants in quenched lattice QCD
نویسندگان
چکیده
منابع مشابه
Light Quenched Hadron Spectrum and Decay Constants on different Lattices
In this paper we study O(2000) (quenched) lattice configurations from the APE collaboration, for different lattice volumes and for 6.0 ≤ β ≤ 6.4 using both the Wilson and the SW-Clover fermion actions. We determine the light hadronic spectrum and meson decay constants and study the mesonic dispersion relation. We extract the hadronic variable J and the strange quark mass in the continuum at the...
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where c = 1/u30, u0 = 〈 3Tr2〉, can be regarded as a step towards full O(a) improvement [2]. We compare the resulting light hadron quantities with those obtained using the tree-level coefficient, c = 1, for which discretisation errors are O(ga) in perturbation theory [3], and also with data from GF11 [4] corresponding to c = 0, at a range of β values, to seek indications of better scaling behavi...
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We study quenched hadron spectra with Wilson fermion in abelian gauge fields extracted by maximal abelian projection and in fields induced by monopoles on 163×32 and 123×24 lattices. Pion mass squared and quark mass defined through the axial Ward identity satisfy the PCAC relation. Gross features of the light hadron spectra are almost similar to those in SU(3) gauge fields if normalization is m...
متن کاملQuenched heavy-light decay constants.
We present results for heavy-light decay constants, using both propagating quarks and the static approximation, inO(a)-improved, quenched lattice QCD. At β = 6.2 on a 243×48 lattice we find fD = 185 + 4 − 3 (stat) + 42 − 7 (syst) MeV, fB = 160 + 6 − 6 + 53 − 19 MeV, fDs/fD = 1.18 + 2 − 2 and fBs/fB = 1.22 + 4 − 3 , in good agreement with earlier studies. From the static theory we obtain f stat ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1994
ISSN: 0556-2821
DOI: 10.1103/physrevd.49.474