Chiral extrapolations with small sea quark mass data in two-flavor lattice QCD
✍ Scribed by Y. Namekawa; S. Aoki; M. Fukugita; K-I. Ishikawa; N. Ishizuka; Y. Iwasaki; K. Kanaya; T. Kaneko; Y. Kuramashi; V.I. Lesk; M. Okawa; A. Ukawa; T. Umeda; T. Yoshié
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 136 KB
- Volume
- 140
- Category
- Article
- ISSN
- 0920-5632
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✦ Synopsis
We present results on the light hadron spectrum and quark mass in two-flavor QCD calculated with small sea quark masses down to mPS/mV = 0.35. The configurations are generated using the RG improved gauge and tadpole-improved clover quark action at β = 1.8, where a -1 1 GeV. Chiral extrapolations are made using not only polynomials and ChPT in the continuum but also formulae of Wilson chiral perturbation theory (WChPT) including O(a 2 ) chiral breaking terms. We examine the viability of WChPT and its influence on quark masses.