Correlation functions at small quark masses with overlap fermions
نویسندگان
چکیده
منابع مشابه
Light Quark Masses with Overlap Fermions in Quenched QCD
We present the results of a computation of the sum of the strange and average up-down quark masses with overlap fermions in the quenched approximation. Since the overlap regularization preserves chiral symmetry at finite cutoff and volume, no additive quark mass renormalization is required and the results are O(a) improved. Our simulations are performed at β = 6.0 and volume V = 16 × 32, which ...
متن کاملHadron Masses and Quark Condensate from Overlap Fermions
We present results on hadron masses and quark condensate from Neuberger’s overlap fermion. The scaling and chiral properties and finite volume effects from this new Dirac operator are studied. We find that the generalized Gell-Mann-Oakes-Renner relation is well satisfied down to the physical u and d quark mass range. We find that in the range of the lattice spacing we consider, the π and ρ mass...
متن کاملScalar condensate and light quark masses from overlap fermions
Pilar Hernández , Karl Jansen b , Laurent Lellouch and Hartmut Wittig e † CERN, Theory Division, 1211 Geneva 23, Switzerland NIC/DESY Zeuthen, Platanenallee 6, D-15738 Zeuthen, Germany Centre de Physique Théorique, Case 907, CNRS Luminy, F-13288 Marseille, France Division of Theoretical Physics, Department of Mathematical Sciences, University of Liverpool, UK DESY, Notkestr. 85, D-22603 Hamburg...
متن کاملLight Quark Masses Using Domain Wall Fermions *
We compute the one–loop self–energy correction to the massive domain wall quark propagator. Combining this calculation with simulations at several gauge couplings, we estimate the strange quark mass in the continuum limit. The perturbative one–loop mass renormalization is comparable to that for Wilson quarks and considerably smaller than that for Kogut–Susskind quarks. Also, scaling violations ...
متن کاملHeavy quark masses from Fermilab Fermions
Using automated perturbation theory techniques, we have computed the one-loop mass of Fermilab fermions, with an improved gluon action. We will present the results of these calculations, and the resulting predictions for the charm and bottom quark masses in the MSbar scheme. We report mc(mc) = 1.22(9) GeV and mb(mb) = 4.7(4) GeV. In addition we present results for the one-loop coefficients of t...
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: 2005
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2004.12.046