Hadron masses and decay constants in quenched QCD
نویسندگان
چکیده
منابع مشابه
Hadron masses and decay constants in quenched QCD ∗
We present results for the mass spectrum and decay constants using non-perturbatively O(a) improved Wilson fermions. Three values of β and 30 different quark masses are used to obtain the chiral and continuum limits. Special emphasis will be given to the question of taking the chiral limit and the existence of non-analytic behavior predicted by quenched chiral perturbation theory (qχP T).
متن کاملLight 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...
متن کاملMonopoles and hadron spectrum in quenched QCD
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 ...
متن کاملLight pseudoscalar decay constants , quark masses , and low energy constants from three - flavor lattice QCD
As part of our program of lattice simulations of three flavor QCDwith improved staggered quarks, we have calculated pseudoscalar meson masses and decay constants for a range of valence quark masses and sea quark masses on lattices with lattice spacings of about 0.125 fm and 0.09 fm. We fit the lattice data to forms computed with “staggered chiral perturbation theory.” Our results provide a sens...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2000
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(00)91623-2