Study of microscopic and macroscopic QGP phenomenon
微观和宏观QGP现象的研究
基本信息
- 批准号:11440080
- 负责人:
- 金额:$ 4.93万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1999
- 资助国家:日本
- 起止时间:1999 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
At very high temperature or density such as the very early second of the universe and neutron stars, the confinement is expected to be broken, and QGP (quark-gluon plasma) state may be realized. Now high energy nuclear collision experiments are actively done to find the QGP.At low density and high temperature we have developed a formula to calculate derivatives of hadron masses etc. with respect to the chemical potential and observed the finite signals. We also studied SU(2) QCD and found the drop of the vector meson for the first time in lattice QCD calculations.In order to understand the phase structure of gauge theories in a non-perturbative manner, we have treated the longitudinal and transverse cornponents of gauge fields carefully with Schwinger-Dyson equation, and analyzed the phase structure in details.We studied also higher dimensional effects on low energy effective electro-weak theory in Randall-Sundrum space-time. We started RHIC experiment to search for QGP. We have observed large anisotropic flow, Jet quenching, the suppression of high transverse pion production and strong rapidity correlation in locally conserved quantities.We have developed a real 3+1 dimension relativistic fluid dynamics code, and together with an event-generator of nuclear reaction which describe the early stage of the collisions, we studied the unisotropic expansion of non-central collision under the realistic initial condition.
在非常高的温度或密度下,如宇宙和中子星的极初秒,束缚有望被打破,QGP(夸克-胶子等离子体)态有望实现。目前,人们正在积极进行高能核碰撞实验来寻找QGP。在低密度和高温下,我们开发了一个公式来计算强子质量等对化学势的导数,并观察了有限信号。我们还研究了SU(2) QCD,并首次在晶格QCD计算中发现了矢量介子的下降。为了以非微扰的方式理解规范理论的相结构,我们用Schwinger-Dyson方程对规范场的纵向和横向分量进行了仔细的处理,并对其相结构进行了详细的分析。我们还研究了Randall-Sundrum时空中低能有效电弱理论的高维效应。我们启动了RHIC实验来寻找QGP。我们观察到大的各向异性流动,射流淬火,抑制高横介子产生和强的局部守恒量的快速相关。我们开发了一个真实的3+1维相对论流体动力学程序,并结合描述碰撞早期阶段的核反应事件发生器,研究了真实初始条件下非中心碰撞的各向同性扩展。
项目成果
期刊论文数量(47)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
A.Nakamura, I.Pushkina, T.Saito, S.Sakai: "Screening of hot gluon"Physics Letters. B549. 133-138 (2002)
A.Nakamura、I.Pushkina、T.Saito、S.Sakai:“热胶子的筛选”物理快报。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
K.Fukazawa, T.Inagaki, S.Mukaigawa, T.Muta: "Structure of Chiral Phase Transitions at Finite Temperature in Abelian Gauge Theories"Prog. Theor. Phys. 105. 979-998 (2001)
K.Fukazawa、T.Inagaki、S.Mukaikawa、T.Muta:“阿贝尔规范理论中有限温度下的手性相变结构”Prog。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Chiho Nonaka: "(3+1)-dimensional relativistic hydrodynamical expansion of hot and dense matter in ultra-relativistic nuclear collision"Eur.Phys.J.C. 17. 663-673 (2000)
Chiho Nonaka:“超相对论核碰撞中热致密物质的(3 1)维相对论流体动力学膨胀”Eur.Phys.J.C.
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
O.Miyamura, S.Choe, Y.Liu, T.Takaishi, A.Nakamura: "Responses of quark condensates to the chemical potential"Physical Review. D66. 077502 (2002)
O.Miyamura、S.Choe、Y.Liu、T.Takaishi、A.Nakamura:“夸克凝聚体对化学势的响应”物理评论。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
N.Sasaki: "A calculation of the transport coefficients of hot and dense hadronic matter based on the event generator URASiMA"Nucl.Phys.. A680. 84-89 (2000)
N.Sasaki:“基于事件发生器 URASiMA 的热致密强子物质输运系数的计算”Nucl.Phys.. A680。
- DOI:
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- 影响因子:0
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NAKAMURA Atsushi其他文献
NAKAMURA Atsushi的其他文献
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{{ truncateString('NAKAMURA Atsushi', 18)}}的其他基金
A multifaceted study of the relay station system in Mongolia established by the Qing Dynasty(Fostering Joint International Research)
对清朝建立的蒙古中继站系统的多方面研究(促进国际联合研究)
- 批准号:
16KK0021 - 财政年份:2017
- 资助金额:
$ 4.93万 - 项目类别:
Fund for the Promotion of Joint International Research (Fostering Joint International Research)
A study of the relay station system of Mongolia, established by the Qing Dynasty, and its political and social significance
清朝设立的蒙古中继站制度及其政治社会意义研究
- 批准号:
16K03071 - 财政年份:2016
- 资助金额:
$ 4.93万 - 项目类别:
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Development of Gauge Theory Numerical Experimental Tool
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- 批准号:
23654092 - 财政年份:2011
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
The dominion of the royal family and territorial connections among Mongolian nomads in the Qing Period
清代皇室的统治与蒙古游牧民族的领土联系
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22720262 - 财政年份:2010
- 资助金额:
$ 4.93万 - 项目类别:
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International Collaborative Study of QCD at Extreme Condition
极端条件下QCD的国际合作研究
- 批准号:
20340055 - 财政年份:2008
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Basic field research on Computer ethic education in foreign countries-Towards International collaboration for learning materials
国外计算机伦理教育基础田野研究——迈向教材国际合作
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19402001 - 财政年份:2007
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$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Quark-Gluon Systems at Extreme Condition: International Collaboration for High Temperature and Density QCD
极端条件下的夸克-胶子系统:高温和密度 QCD 的国际合作
- 批准号:
17340080 - 财政年份:2005
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Perturbative and Non-Perturbative Analyses of Strong Coupling Field Theories
强耦合场论的微扰和非微扰分析
- 批准号:
13135216 - 财政年份:2001
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Development of Lattice QCD Simulation System on PC Cluster
PC集群上格子QCD仿真系统的开发
- 批准号:
12554008 - 财政年份:2000
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Improved Actions by Renormalization Group
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- 批准号:
10640272 - 财政年份:1998
- 资助金额:
$ 4.93万 - 项目类别:
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