Topics in light hadron mass spectrum in quenched QCD
نویسندگان
چکیده
منابع مشابه
Chiral limit of light hadron mass in quenched staggered QCD
We have been reporting our quenched staggered light hadron mass calculations for the past few years [1]. Our inverse squared coupling is set at β=6.5 corresponding to a high cutoff of a∼3.7 GeV. The lattice volume of 48 × 64 covers about 2.6 fm across for each space dimension and hence is comfortable enough even for our lightest pion with mπ∼0.06 a =220 MeV. We calculated staggered quark propag...
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 Light Hadron Spectrum CP - PACS Collaboration
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 ≈ 0.1 – 0.05 fm on lattices with a physical extent of 3 fm at five quark masses corresponding to mπ/mρ ≈ 0.75 – 0.4. The calculated spectrum in the continuum limit shows...
متن کاملCP-PACS results for light hadron spectrum in quenched and two- avor full QCD
We present a summary of our results for the light hadron spectrum in quenched lattice QCD and preliminary ones in twoavor full QCD. For the quenched hadron spectrum we nd that the mass formulae predicted by quenched chiral perturbation theory(QChPT) give a good description of our results. Employing the QChPT mass formulae for chiral extrapolations we conclude that the mass spectrum in the conti...
متن کاملEffect of tree-level and mean-field improvement on the light-hadron spectrum in quenched QCD
We compute the light-hadron mass spectrum at b55.7 using the O(a)-improved Sheikholeslami-Wohlert fermion action with two choices of the clover coefficient: the classical value c51 and a mean-field or tadpole-improved estimate c51.57. We compare our results with those of the GF11 Collaboration who use the Wilson fermion action (c50). We find that changing c from zero to 1 and 1.57 leads to sign...
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: 1997
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(96)00616-0