Research for Nonperturbative Properties of Quarks, Gluons and Hadrons in Quantum Chromodynamics

量子色动力学中夸克、胶子和强子的非微扰性质研究

• 批准号: 16540236
• 负责人: SUGANUMA Hideo
• 金额: $ 2.18万
• 依托单位: Kyoto University (2005-2006)Tokyo Institute of Technology (2004)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16540236/
• 关键词: Quantum Chromodynamics (QCD); Quarks; Gluons; Lattice Gauge Theory; Color Confinement; Nonperturbative; Exotic Hadrons; Superstring Theory; QGP; 非摂動的真空; クォーク・グルーオン・プラズマ(QGP); 格子QCD; 閉じ込め; 弦理論; ベンタクォーク

Based on quantum chromodynamics (QCD), the fundamental theory of the strong interaction, we have performed highly original studies on color confinement, quark many-body systems, quark-gluon-plasma (QGP), holographic QCD obtained from the superstring theory, and so on.1. We perform in detail the first accurate lattice-QCD study of the three-quark potential, responsible to the physical properties of baryons such as nucleons. We clarify that the three-quark potential is described by the sum of two-body Coulomb and Y-type linear confinement potential. This study is established as an important work and is cited by Prof. Rothe's textbook "Lattice Gauge Theories".2. We perform the first study of baryons as chiral solitons in holographic QCD, which is obtained from the D-brane system corresponding to QCD using the gauge/gravity duality in the superstring theory.3. We perform in detail the first lattice-QCD study of the confinement potential in the quark many-body systems such as tetra-quarks and penta-quarks, and find that the string picture is applicable even for these quark many-body systems at large-distances.4. We perform in detail the first study of the gluonic excitation in three-quark systems in lattice QCD, and find a large gluonic excitation energy of about 1GeV, which is conjectured to lead to a physical reason of the success of the quark model without gluons.5. We study penta-quark baryons in lattice QCD with checking the boundary-condition dependence, and show that no penta-quark resonance appears below 1.75GeV.6. We study charmonia at finite temperature in lattice QCD with checking the boundary-condition dependence, and find that J/Psi survives as a hadronic resonance even above the critical temperature, i.e., in QGP. 7. We combine the Schwinger-Dyson equation and lattice QCD results, and investigate finite temperature/density QCD.8. We perform the first study of the quark-gluon mixed condensate at finite temperature in lattice QCD.

基于量子染色体动力学（QCD），即强相互作用的基本理论，我们对颜色限制，夸克多体系统，夸克 - 格洛隆 - 普拉斯玛（QGP）进行了高度原始的研究，从superString理论中获得的全息QCD，等等。我们详细介绍了三夸克电势的首次精确晶格QCD研究，这是核子等重子的物理特性的原因。我们澄清说，三夸克电势是通过两体库仑和y型线性限制电位的总和来描述的。这项研究是作为一项重要工作确定的，并由Rothe教授的教科书“ Lattice Gauge理论”引用。2。我们在全息QCD中对重手性孤子进行了首次研究，该研究是从d-brane系统中使用QCD使用量规/重力二元性在SuperString Theory.3中获得的。3。我们详细介绍了第一个QCD QCD研究，该研究对夸克多体系统（例如Tetra-Quarks和Penta-Quarks）中的限制潜力进行了研究，并发现字符串图片即使适用于这些大距离的夸克多体系统。4。我们详细介绍了晶格QCD中三夸克系统中的gluonic激发的第一个研究，并找到了大约1GEV的大gluonic兴奋能，这被猜想导致物理原因导致夸克模型成功而没有gluons.5。我们研究了晶格QCD中的Penta-Quark Ba​​ryons，并检查边界条件依赖性，并表明没有Penta-Quark共振出现在1.75GEV.6以下。我们研究了晶格QCD的有限温度的炭接，并检查边界条件依赖性，并发现J/PSI甚至在临界温度（即QGP中）也可以作为耐药的共振生存。 7。我们将Schwinger-Dyson方程和晶格QCD结果结合在一起，并研究有限温度/密度QCD.8。我们在晶格QCD中的有限温度下对夸克 - 糖混合冷凝物进行了首次研究。

项目成果

Role of Large Gluonic Excitation Energy for Narrow Width of Penta-Quark Baryons in QCD String Theory

QCD 弦理论中窄宽度五夸克重子的大葡萄糖激发能的作用

• 发表时间: 2005
• 期刊: Nuclear Physics A(発表予定)
• 作者: H.Suganuma;F.Okiharu;T.T.Takahashi;H.Ichie
• 通讯作者: H.Ichie

The Static Penta-Quark Potential in Lattice QCD

晶格 QCD 中的静态五夸克势

• 发表时间: 2005
• 期刊: "Pentaquark04", World Scientific
• 作者: T.Doi;N.Ishii;M.Oka;H.Suganuma;F.Okiharu;F.Okiharu;N.Ishii;N.Ishii;H.Iida;H.Suganuma;N.Ishii;H.Suganuma;H.Iida;N.Ishii;T.Doi;H.Suganuma;H.Suganuma;F.Okiharu
• 通讯作者: F.Okiharu

QCD Sum Rules of Pentaquarks

五夸克的 QCD 求和规则

• 发表时间: 2005
• 期刊: "Pentaquark04", World Scientific
• 作者: T.Doi;N.Ishii;M.Oka;H.Suganuma;F.Okiharu;F.Okiharu;N.Ishii;N.Ishii;H.Iida;H.Suganuma;N.Ishii;H.Suganuma;H.Iida;N.Ishii;T.Doi;H.Suganuma;H.Suganuma;F.Okiharu;N.Ishii;H.Suganuma;H.Iida;T.Doi;T.Shinozaki;A.Hosaka;K.Sasaki;H.Kiuchi;M.Oka;M.Oka;M.Oka
• 通讯作者: M.Oka

Lattice QCD Study for the Interquark Force in Three-Quark and Multi-Quark Systems

• DOI: 10.1063/1.1920939
• 发表时间: 2004-12
• 作者: H. Suganuma;Toru T. Takahashi;F. Okiharu;H. Ichie

Penta-quark in Anisotropic Lattice QCD

各向异性晶格 QCD 中的五夸克

• 发表时间: 2005
• 期刊: Nuclear Physics A755
• 作者: Y.Asari;J.Nara;N.Kobayashi;T.Ohno;N.Ishii
• 通讯作者: N.Ishii