1.
Phys Rev Lett
; 85(24): 5051-4, 2000 Dec 11.
Article
in English
| MEDLINE
| ID: mdl-11102184
ABSTRACT
The chiral symmetry relation and scaling of the overlap fermions are studied numerically on the quenched lattices at 3 couplings with about the same physical volume. We find that the generalized Gell-Mann-Oakes-Renner relation is satisfied to better than 1% down to the smallest quark mass at m(0)a = 0.006. We also obtain the quark mass from the PCAC relation and the pseudoscalar masses. The renormalization group invariant quark mass is shown to be fairly independent of scale. The pi and rho masses at a fixed m(pi)/m(rho) ratio indicate small O(a(2)) corrections. It is found that the critical slowing down sets in abruptly at a very small quark mass close to those of the physical u and d quarks.
2.
Phys Rev D Part Fields
; 53(3): 1532-1536, 1996 Feb 01.
Article
in English
| MEDLINE
| ID: mdl-10020145
3.
Phys Rev D Part Fields
; 53(3): 1709-1711, 1996 Feb 01.
Article
in English
| MEDLINE
| ID: mdl-10020161
4.