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ID 14451
file
creator
CP-PACS, Collaboration
Aoki, S.
Aoki, Y.
Burkhalter, R.
Ejiri, S.
Fukugita, M.
Hashimoto, S.
Ishizuka, N.
Iwasaki, Y.
Izubuchi, T.
Kanaya, K.
Kaneko, T.
Kuramashi, Y.
Lesk, V.
Nagai, K.-I.
Noaki, J.
Taniguchi, Y.
Ukawa, A.
Yoshie, T.
subject
QCD
NDC
Physics
abstract
We present a calculation of the K → ππ decay amplitudes from the K → π matrix elements using leading order relations derived in chiral perturbation theory. Numerical simulations are carried out in quenched QCD with the domain-wall fermion action and the renormalization group improved gluon action. Our results show that the I = 2 amplitude is reasonably consistent with experiment whereas the I = 0 amplitude is sizably smaller. Consequently the ΔI = 1/2 enhancement is only half of the experimental value, and ε′/ε is negative.
journal title
Nuclear Physics B - Proceedings Supplements
volume
Volume 106-107
start page
332
end page
334
date of issued
2002-03
publisher
Elsevier Science B.V.
issn
0920-5632
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2002 Elsevier Science B.V.
relation is version of URL
http://dx.doi.org/10.1016/S0920-5632(01)01705-4
department
Graduate School of Science



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