Quark duclear physics in the dual Ginzburg-Landau theory
Quark duclear physics in the dual Ginzburg-Landau theory
批准号:
11640278
负责人:
TOKI Hiroshi
金额:
$1.79万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
1999
资助国家:
日本
项目状态:
已结题
起止时间:
1999 至 2000
中文摘要
DGL理论被认为是低能QCD的有效理论,我们在DGL理论的基础、在低能现象中的应用以及强子现象的唯象学等方面进行了广泛的研究.在DGL理论中,色场起着核心作用。我们把瞬子看作是瞬子的源,并证明了当瞬子数增加时,系统成为瞬子凝聚介质。然而,禁闭的强度不足以再现其全部强度。在此基础上,我们研究了夸克在瞬子背景下的性质,并尝试计算了手征对称性破缺和禁闭性质.我们对重子系统中的三体禁闭势进行了格点QCD模拟。我们可以证明限制力与三个夸克的最小连接长度成正比。强度为B ...更多信息 e与介子系统的e相同。这一发现与DGL理论中限制势的性质相一致。格点QCD已经证明了非诊断胶子在阿贝尔规范中获得质量,这两个事实是DGL理论作为低能QCD有效理论的有力支持.本文研究了变形振子夸克模型(DOQ)中重子的激发谱。我们已经证明,DOQ模型能够再现重子除少数几个态外的大部分激发能。这一发现表明,重子的激发态可以用约束机制来解释。我们还研究了重子激发态之间的电磁跃迁。结果与非相对论夸克模型的结果十分相似。然后我们开始研究相对论运动学的影响。利用格点QCD的三体束缚力结果研究重子系统也是非常有意义的。少
英文摘要
The Dual Ginzburg-Landau(DGL)tbeory is cosidered to be the effective theory of low energy QCD.We have performed research in wide range in which the foundation of the DGL theory, its application to the low energy pbenomena and the phenomenology of hadronic phenomena are studies.1. In the DGL theory the color monopole field plays the central role. We considered the insanton as the source of the monopole and showed that when the number of instantons increases, the system becomes the monopole condensed medium. However, the strength of confinement is not enough to reproduce its full strength. On top, we have studied the properties of quarks in the background of instantons and tried to calculate the chiral symmetry breaking and the confinement properties.2. We have made lattice QCD simulations on the three body confining potentials in the baryonic system. We could show that the confining force is proportional to the minimum length of connection of the three quarks. The strength is found to b … More e the same as the one of the meson system. This finding corresponds to the property of the confining potential in the DGL theory. The lattice QCD showed before that non-diagnoal gluons acquere masses in the abelian gauge and these two facts are the strong support of the DGL theory as the effective theory of low energy QCD.3. We have studied the excitation spectra of baryons in the deformed oscillator quark model(DOQ). We have shown that the DOQ model is able to reproduce most of the sxcitation energies of baryons except for a few states. This finding indicates that the excited states of baryons are to be explained in terms of the confinement mechanism. We have studied also the electro-magnetic transitions among baryonic excited states. The results were found to be quite similar to the ones of the non-relativistic quark models. We have then started to investigate the effects of the relativistic kinematics. It is also very inceresting to study baryonic systems using the results of the lattice QCD on the three body confineing force. Less
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M.Takayama et al.: "Systematics of baryon masses and deformed oscillator quark model"Nucl.Phys.A. 663. 695-698 (2000)
M.Takayama 等人:“重子质量和变形振子夸克模型的系统学”Nucl.Phys.A。
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V.Gogokhia, H.Toki, T.Sakai, G.Kluge: "Chiral QCD vacuum energy density in the zero modes enhancement quantum model."International Journal of Modern Physics. A15. 45-64 (2000)
V.Gogokhia、H.Toki、T.Sakai、G.Kluge:“零模式增强量子模型中的手性 QCD 真空能量密度”。《国际现代物理学杂志》。
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M.Fukushima et al.: "Quark confinement and extended monopole clustering in the multi-instanton system."Nucl.Phys.Proc.Supp.. 83. 458-460 (2000)
M.Fukushima 等人:“多瞬时系统中的夸克限制和扩展单极子簇。”Nucl.Phys.Proc.Supp.. 83. 458-460 (2000)
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M.Fukushima,H.Suganuma,H.Toki: "Quark confinement and extended monopole clustering in the multi-instanton system. "Nuclear Physics Proceedings Supplements. 83. 458-460 (2000)
M.Fukushima、H.Suganuma、H.Toki:“多瞬时系统中的夸克限制和扩展单极子聚类。”核物理论文集增刊。
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D.Roy, T.Morii, H.Toki, A.I.Titov: "Is there window for a supersoft pomeron in J/psi photoproduction at low energy?"Progress of Theoretical Physics. 103. 747-753 (2000)
D.Roy、T.Morii、H.Toki、A.I.Titov:“在低能量 J/psi 光生产中是否存在超软波默龙的窗口?”理论物理进展。
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共 8 条
Importance of pion in nuclear structure and quantitative description of nuclei in the tensor-optimized shell-model
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批准号:21540267
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项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$2.83万
-
财政年份:2009
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负责人:TOKI Hiroshi
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依托单位:
Relativistic chiral mean field model with parity and charge projection for nuclear structure
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批准号:18540269
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.58万
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财政年份:2006
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负责人:TOKI Hiroshi
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依托单位:
Surface pion condensation of finite nucleus in the relativistic mean field theory
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批准号:14340076
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$7.74万
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财政年份:2002
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负责人:TOKI Hiroshi
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依托单位:
Transformation of institutional Framework for Policy Process: The Cases of the Nordic Countries
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批准号:12572011
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$8.06万
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财政年份:2000
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负责人:TOKI Hiroshi
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依托单位:
Meson-Quark Nuclear Physics through International Medium Energy Network
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批准号:11691128
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$4.03万
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财政年份:1999
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负责人:TOKI Hiroshi
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依托单位:
Quark-Lepton Nuclear Physics
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批准号:08304023
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$3.78万
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财政年份:1996
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负责人:TOKI Hiroshi
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依托单位:
Proton-, Antiproton-, Pion- and Heauy Ion- Nucleus Interaction
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批准号:60540186
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项目类别:Grant-in-Aid for General Scientific Research (C)
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资助金额:$1.15万
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财政年份:1985
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负责人:TOKI Hiroshi
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依托单位: