K-]PI(+)PI(O) DECAY AMPLITUDE IN QUENCHED LATTICE QCD()

Authors
AOKI S FUKUGITA M HASHIMOTO S ISHIZUKA N IWASAKI Y KANAYA K KURAMASHI Y OKAWA M UKAWA A YOSHIE T
Citation
S. Aoki et al., K-]PI(+)PI(O) DECAY AMPLITUDE IN QUENCHED LATTICE QCD(), Nuclear physics. B, Proceedings supplement, 63, 1998, pp. 284-286
Citations number
12
Categorie Soggetti
Physics, Particles & Fields
Journal title
Nuclear physics. B, Proceedings supplement → ACNP
ISSN journal
09205632
Volume
63
Year of publication
1998
Pages
284 - 286
Database
ISI
SICI code
0920-5632(1998)63:<284:KDAIQL>2.0.ZU;2-A
Abstract
A new study is reported of a lattice QCD calculation of the K+ --> pi( +)pi(0) decay amplitude with the Wilson quark action in the quenched a pproximation at beta = 6.1. The amplitude is extracted from the K --> pi pi Green function, and a conversion to the continuum value is made employing a recent one-loop calculation of chiral perturbation theory. The result is consistent with the experimental value if extrapolated to the chiral limit.