Phenomenology of Chiral Transition at High Temperature and Density
高温高密度下手性转变的现象学
基本信息
- 批准号:05804014
- 负责人:
- 金额:$ 0.7万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1993
- 资助国家:日本
- 起止时间:1993 至 1994
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In the first year, we developed a new cut-off scheme for the Nambu-Jona-Lasinio (NJL) model. The scheme is based on the dispersion relation and applicable to the finite temperature (T) and density (rho) cases. We also give a foundation to the mean-field theory at finite temperature, on the basis of an inequality due to Feynman. We calculated the width of the sigma meson in the medium at finite T and rho in various kinematical conditions.In the next (final) year, we proposed several experiments to see the possible mass shift of the sigma meson in the medium at finite density. This is based on the observation that scalar and vector fields can mix at finite density. We also proposed to detect 2pi^0 to see the sigma meson.We examined the reason why the time-dependent phenomena in the superconductors may be described in the diffusive time-dependent Ginzburug equation in contrast with the chiral transition. This is due to the fact that the effective spatial dimension of the superconductors as described the BCS theory is one not three as in the NJL model. We also clarified that the saturation properties hence thestability of nuclei is due to chiral symmetry of QCD.
在第一年,我们为Nambu-Jona-Lasinio(NJL)模型开发了一个新的截止方案。该格式基于色散关系,适用于有限温度(T)和有限密度(Rho)的情况。基于Feynman的一个不等式,我们还给出了有限温度下平均场理论的基础。我们计算了有限T和Rho下介质中的sigma介子的宽度。在接下来的一年(最后一年),我们提出了几个实验来观察在有限密度下sigma介子在介质中可能的质量移动。这是基于标量场和矢量场可以在有限密度下混合的观察结果。我们还提出了探测2pi^0来观察sigma介子。我们研究了为什么超导体中的含时现象可以用扩散含时金兹堡方程来描述,而不是手征跃迁。这是因为BCS理论所描述的超导体的有效空间维度是1,而不是NJL模型中的3。我们还阐明了QCD的手征对称性导致了原子核的饱和性质,从而导致了原子核的稳定性。
项目成果
期刊论文数量(15)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Kunihiro: "Chiral Transition in QCD and Its Relevance to High-Energy Heavy-Ion Collisions" "Hadrons and Nucleifrorn QCD", ed, by K.Fujii et al (World-Scientific). 38-46 (1995)
T.Kunihiro:“QCD 中的手性转变及其与高能重离子碰撞的相关性”“强子和核 QCD”,由 K.Fujii 等人编着(世界科学出版社)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T. Kunihiro: "Chiral Symmetry and Scalar Meson in Hadron and Nuclear Physics" Prog. Theor. Phys. Suppl.予定. (1995)
T. Kunihiro:“强子和核物理中的手性对称性和标量介子”计划。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Hatsuda & T.Kunihiro: "QCD Phenomenology based on a chiral effective Lagrangian" Phys.Rep. 247. 221-367 (1994)
初田
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Kunihiro: "Chiral Symmetry and Scalar Meson in Hadron and Nuclear physics" Prog.Theor.Phys.Suppl.(予定). (1995)
T.Kunihiro:“强子和核物理中的手性对称性和标量介子”Prog.Theor.Phys.Suppl.(计划)(1995)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Kunihiro: "Chiral Transition in QCD and Its Relevance to High-Energy Heavy-Ion Collisione" “Hadrons and Nuclei trom QCD"ed.by K.Fujii et al (World Scientific). 38-46 (1994)
T.Kunihiro:“QCD 中的手性跃迁及其与高能重离子碰撞的相关性”“Hadrons and Nuclei trom QCD”,作者:K.Fujii 等人 (World Scientific) 38-46 (1994)。
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- 影响因子:0
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KUNIHIRO Teiji其他文献
KUNIHIRO Teiji的其他文献
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{{ truncateString('KUNIHIRO Teiji', 18)}}的其他基金
Systematic Study of nonequilibrium dynamics in phase transitions of Quark-hadron matter
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23340067 - 财政年份:2011
- 资助金额:
$ 0.7万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study of Dynamical Properties around the QCD Critical Points based on Chiral Effective Theory
基于手性有效理论的QCD临界点附近动力学性质研究
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20540265 - 财政年份:2008
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$ 0.7万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study on the character of elementary excitations around critical point of QCD phase transitions
QCD相变临界点附近基元激发特性研究
- 批准号:
17540250 - 财政年份:2005
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$ 0.7万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Systematic Study on Precursory Phenomena of Chiral Phase Transition in Hadronic Matter
强子物质手性相变前驱现象的系统研究
- 批准号:
14540263 - 财政年份:2002
- 资助金额:
$ 0.7万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Chiral transition at high temperature and density and the σ-meson in nuclear medium
高温高密度手性转变与核介质中的σ介子
- 批准号:
12640296 - 财政年份:2000
- 资助金额:
$ 0.7万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study on the non-perturbative propesties of QGP based or low-energy effective theries
基于QGP或低能有效理论的非微扰特性研究
- 批准号:
09640377 - 财政年份:1997
- 资助金额:
$ 0.7万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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