Light quark masses using domain wall fermions

Citation
T. Blum et al., Light quark masses using domain wall fermions, NUCL PH B-P, 73, 1999, pp. 201-203
Citations number
17
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
73
Year of publication
1999
Pages
201 - 203
Database
ISI
SICI code
0920-5632(199903)73:<201:LQMUDW>2.0.ZU;2-Z
Abstract
We compute the one-loop self-energy correction to the massive domain wall q uark propagator. Combining this calculation with simulations at several gau ge couplings, we estimate the strange quark mass in the continuum limit. Th e perturbative one-loop mass renormalization is comparable to that for Wils on quarks and considerably smaller than that for Kogut-Susskind quarks. Als o, scaling violations appear mild in comparison to other errors at present. Given their good chiral behavior and these features domain wall quarks are attractive for evaluating the light quark masses. Our preliminary quenched result is m(s)(2 GeV) = 82(15) MeV in the <(MS)over bar> scheme.