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ID 14521
file
creator
CP-PACS Collaboration
Ali Khan, A
Aoki, S
Boyd, G
Burkhalter, R
Ejiri, S
Fukugita, M
Hashimoto, S
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Manke, T
Nagai, K-I
Shanahan, H. P.
Ukawa, A
Yoshié, T
NDC
Physics
abstract
We present the final results of the CP-PACS calculation of the light hadron spectrum and quark masses withtwo flavors of dynamical quarks. Simulations are made with a renormalization-group improved gauge action anda mean-field improved clover quark action for sea quark masses corresponding to mPS/mV 0.8–0.6 and thelattice spacing a = 0.22–0.11 fm. For the meson spectrum in the continuum limit a clearly improved agreementwith experiment is observed compared to the quenched case, demonstrating the importance of sea quark eects.For light quark masses we obtain mMSud (2GeV ) = 3.44+0.14-0.22 MeV and mMSs (2GeV ) = 88+4-6 MeV (K-input) andmMSs (2GeV ) = 90+5-11 MeV (-input), which are reduced by about 25% compared to the values in quenched QCD.
journal title
Nuclear Physics B Proceedings Supplements
volume
Volume 94
issue
Issue 1-3
start page
229
end page
232
date of issued
2001
publisher
Elsevier Science B.V.
issn
0920-5632
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2001 Elsevier Science B.V.
relation is version of URL
http://dx.doi.org/10.1016/S0920-5632(01)00961-6
department
Graduate School of Science