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5 papers · 1 filter
Charmonium spectroscopy with heavy Kogut-Susskind quarks
S. Aoki, M. Fukugita, S. Hashimoto +5
Charmonium spectroscopy with Kogut-Susskind valence quarks are carried out for quenched QCD at and for two-flavor full QCD at . Results for 1P--1S mass splitting and…
A Hybrid Method for Global Updates in Monte Carlo Study
Tomo Munehisa, Yasuko Munehisa
We propose a new algorithm which works effectively in global updates in Monte Carlo study. We apply it to the quantum spin chain with next-nearest-neighbor interactions. We observe…
Manifestation of Sea Quark Effects in the Strong Coupling Constant in Lattice QCD
S. Aoki, M. Fukugita, S. Hashimoto +5
We demonstrate that sea quark effects of a magnitude expected from renormalization group considerations are clearly visible in the strong coupling constant measured in current full…
An Exploratory Study of Nucleon-Nucleon Scattering Lengths in Lattice QCD
M. Fukugita, Y. Kuramashi, H. Mino +2
An exploratory study is made of the nucleon-nucleon -wave scattering lengths in quenched lattice QCD with the Wilson quark action. The - and - scattering lengths are…
Re-Structuring Method for the Negative Sign Problem in Quantum Spin Systems
Tomo Munehisa, Yasuko Munehisa
We present detailed discussions on a new approach we proposed in a previous paper to numerically study quantum spin systems. This method, which we will call re-structuring method h…