ar X iv : h ep - l at / 9 50 90 87 v 1 2 6 Se p 19 95 1 The D 234 action for light quarks
نویسندگان
چکیده
We investigate a new light fermion action (the " D234 " action), which is accurate up to O(a 3) and tadpole-improved O(aαs) errors. Using D234 with Symanzik-and tadpole-improved glue we find evidence that continuum results for the quenched hadron spectrum (pion, rho and nucleon) can be obtained on coarse lattices.
منابع مشابه
ar X iv : h ep - l at / 9 90 91 06 v 1 1 3 Se p 19 99 1 P - wave heavy - light mesons using NRQCD and D 234
The masses of Sand P-wave heavy-light mesons are computed in quenched QCD using a classically and tadpole-improved action on anisotropic lattices. Of particular interest are the splittings among P-wave states, which have not yet been resolved experimentally; even the ordering of these states continues to be discussed in the literature. The present work leads to upper bounds for these splittings...
متن کاملar X iv : h ep - l at / 9 70 90 43 v 1 1 5 Se p 19 97 1 Heavy - Light Meson Decay Constants on the Lattice
We present a high statistics study of the D-and B-meson decay constants. The results were obtained by using the Clover and Wilson lattice actions at β = 6.0 and 6.2.
متن کاملar X iv : h ep - l at / 9 70 91 23 v 1 2 6 Se p 19 97 1 One loop calculation of QCD with domain - wall quarks ∗
We calculate one loop corrections to the domain-wall quark propagator in QCD. We show how the wave function is renormalized in this theory. Especially we are interested in the behavior of the massless fermion mode, which exists near the domain wall at the tree level. We show that this massless mode is stable against the quantum correction.
متن کاملar X iv : h ep - l at / 9 70 90 50 v 1 1 6 Se p 19 97 1 Extension of a new analytical method for locating critical temperatures ∗
We investigate recently proposed method for locating critical temperatures and introduce some modifications which allow to formulate exact criterion for any self-dual model. We apply the modified method for the Ashkin-Teller model and show that the exact result for a critical temperature is reproduced. We test also a two-layer Ising model for the presence of eventual self-duality.
متن کاملar X iv : h ep - l at / 9 70 90 87 v 1 2 3 Se p 19 97 1 Spectrum of the gauge Ising model in three dimensions
We present a high precision Monte Carlo study of the spectrum of the Z2 gauge theory in three dimensions in the confining phase. Using state of the art Monte Carlo techniques we are able to accurately determine up to three masses in a single channel. We compare our results with the SU(2) spectrum and with the prediction of the Isgur-Paton model. Our data strongly support the conjecture that the...
متن کامل