Three flavor dynamical QCD project by CP-PACS/JLQCD

✍ Scribed by Kazuyuki Kanaya

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 625 KB
• Volume: 128
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(03)02465-4

✦ Synopsis

The CP-PACS and JLQCD Collaborations have been made systematic studies of lattice QCD carrying out both chiral and continuum extrapolations.

Importance of dynamical quark effects has been clarified by a comparison of quenched QCD and two flavor full QCD simulations.

In two flavor simulations, the dynamical effects of u and d quarks are taken into account, but the third quark s is still treated in a quenched approximation.

As the final step towards a fully realistic lattice simulation of &CD, two collaborations started a joint project of three flavor &CD, concentrating all big computers available. Based on a series of preparative studies of exact simulation algorithm and non-perturbative improvement coefficient, a large scale simulation of three flavor QCD has been started. I present the results of light hadron spectrum and light quark masses from the first production runs.