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ID 14561
file
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creator
CP-PACS Collaboration
Aoki, S
Fukugita, M
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Ukawa, A
Yamazaki, T
Yoshié, T
NDC
Physics
abstract
We present a report on a calculation of scaterring length for I=2 S-wave two-pion system from two-pion wave function. Calculations are made with an RG-improved action for gluons and improved Wilson action for quarks at a-1=1.207(12) GeV on 163×80, 203×80 and 243×80 lattices. We investigate the validity of necessary condition for application of Lüscher's formula through the wave function. We find that the condition is satisfied for lattice volumes L≥3.92 fm for the quark mass range . We also find that the scattering length can be extracted with a smaller statistical error from the wave function than with a time correlation function used in previous studies.
journal title
Nuclear Physics B Proceedings Supplements
volume
Volume 140
start page
305
end page
307
date of issued
2005
publisher
Elsevier Science B.V.
issn
0920-5632
language
eng
nii type
Conference Paper
HU type
Conference Papers
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2005 Elsevier Science B.V.
relation is version of URL
http://dx.doi.org/10.1016/j.nuclphysbps.2004.11.143
department
Graduate School of Science



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