| Project/Area Number |
08640404
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
素粒子・核・宇宙線
|
|---|
| Research Institution | High Energy Accelerator Research Organization |
|---|
Principal Investigator |
OKAWA Masanori High Energy Accelerator Research Organization, Institute of Particle and Nuclear Studies, Associate Professor, 素粒子原子核研究所, 助教授 (00168874)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
ONOGI Tetsuya Hiroshima University, Department of Physics, Research Assistant, 理学部, 助手 (70211802)
蔵増 嘉伸 高エネルギー加速器研究機構, 素粒子原子核研究所, 助手 (30280506)
|
|---|
| Project Period (FY) |
1996 – 1998
|
| Project Status |
Completed (Fiscal Year 1998)
|
| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1996: ¥700,000 (Direct Cost: ¥700,000)
|
|---|
| Keywords | Lattice QCD / Hadronic matrix elements |
|---|
| Research Abstract |
Large scale lattice QCD simulations have been made to calculate phenomenologically important hadronic matrix elements such as the K meson bag parameter B_K and the B meson decay constant f_B and f_<BS>, To estimate the values of the matrix elements in the continuum theory, we systematically study the effects of various discretization errors caused by finite lattice spacing. After taking continuum limit, we obtain B_K=0.628(42), f_B=173(4)MeV and f_<BS>=199(3) MeV.Lattice QCD simulations have also been made to calculate quark masses, hadron spectrum, static quark potential and K^+-pi^+pi^0 decay amplitude and to study the nature of the finite temperature chiral phase transition of 2 and 3 flavors QCD.
|
