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ID 14492
file
creator
CP-PACS Collaboration
JLQCD Collaboration
Tsutsui, N
Aoki, S
Fukugita, M
Hashimoto, S
Ishikawa, T
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Onogi, T
Taniguch, N
Ukawa, A
Yoshié, T
NDC
Physics
abstract
We present a lattice QCD calculation of the parameters α and β which are necessary in the theoretical estimation of the proton lifetime in grand unified theories (GUTs) using chiral lagrangian approach. The simulation is carried out using the Wilson quark action at three gauge coupling constants in the quenched approximation. We obtain |α(2GeV)|=0.0091(08)(-19+10)GeV3 and |β(2GeV)| = 0.0098(08) (-20+10)GeV3 in the continuum limit where the first error is statistical and the second one is due to scale setting.
journal title
Nuclear Physics B Proceedings Supplements
volume
Volume 129-130
start page
284
end page
286
date of issued
2004
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) 2004 Elsevier Science B.V.
relation is version of URL
http://dx.doi.org/10.1016/S0920-5632(03)02557-X
department
Graduate School of Science



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