Partially quenched QCD with non-degenerate dynamical quarks
نویسندگان
چکیده
منابع مشابه
Partially Quenched Qcd with Non-degenerate Dynamical Quarks * Lattice Simulations
We discuss the importance of using partially quenched theories with three degenerate quarks for extrapolating to QCD, and present some relevant results from chiral perturbation theory. Simulations of lattice QCD have, to date, largely used the quenched (Q), or partially quenched (PQ), approximations. These approximations introduce unphysical artifacts, some of which can be analyzed using chiral...
متن کاملTwisted - mass lattice QCD with mass non - degenerate quarks
The maximally twisted lattice QCD action of an SUf (2) doublet of mass degenerate Wilson quarks gives raise to a real positive fermion determinant and it is invariant under the product of standard parity times the change of sign of the coefficient of the Wilson term. The existence of this spurionic symmetry implies that O(a) improvement is either automatic (like in the case of energies) or achi...
متن کاملPartially quenched QCD with a chemical potential
Using a chiral random matrix theory we can now derive the low energy partition functions and Dirac eigenvalue correlations of QCD with different chemical potentials for the dynamical and valence quarks. The results can also be extended to complex (and purely imaginary) chemical potential. We also discuss possible applications such as fitting to low energy constants and understanding the phase d...
متن کاملDeconfinement in Qcd with Dynamical Quarks
We study the phase structure of full QCD within the canonical ensemble (CE) with respect to triality in a lattice formulation. The procedure for the calculation of the effective potentials (EP) in the CE is given. We calculate the EP for the three dimensional SU(2) gauge model at finite temperatures in the strong coupling region. The potential exhibits a genuine deconfinement phase transition u...
متن کاملLattice QCD with dynamical domain wall quarks
An obvious source of systematic error in numerical lattice QCD at present is the quenched approximation. Use of domain wall fermion (DWF) [1] dynamical quarks to lift this approximation is attractive because DWF preserve the flavor and chiral symmetries both on and off shell on the lattice before the continuum limit is taken. Evidently successful implementation would bring many advantages, such...
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)91860-7