Lee-Yang zeros and QCD Phase structure -- Unified Approach of Experiments, Theories and Numerical Analyses
Project/Area Number |
26610072
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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Research Institution | Osaka University (2015-2016) Hiroshima University (2014) |
Principal Investigator |
Nakamura Atsushi 大阪大学, 核物理研究センター, 協同研究員 (30130876)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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Keywords | QCD / 格子ゲージ理論 / 高エネルギー重イオン反応 / 相転移 / 多倍長計算 / 相図 / 有限密度 / リーヤンゼロ / 高エネルギー重イオン / クォーク / グルーオン / 格子QCD / QCD相図 / 臨界点 / リー・ヤンゼロ |
Outline of Final Research Achievements |
In order to study the QCD phase structure, we have determined the canonical partition fuction both from high energy heavy ion collisions and the lattice QCD. Using these canonical partition functions we have calculate the Lee-Yang zeros in both experimental and numerical approaches. In these studies, we have developed a new algorithm to obtain zeros of high order polynomical functios with multi-precision calculations. We show regions where experiments should pursuefor detecting the QCD phase transition.
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Report
(4 results)
Research Products
(17 results)
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[Journal Article] Phase structure of two-color QCD at real and imaginary chemical potentials; lattice simulations and model analyses2016
Author(s)
Takahiro Makiyama (Saga U., Japan), Yuji Sakai (Wako, RIKEN), Takuya Saito (Kochi U.), Masahiro Ishii, Junichi Takahashi (Kyushu U.), Kouji Kashiwa (Kyoto U., Yukawa Inst., Kyoto), Hiroaki Kouno (Saga U., Japan), Atsushi Nakamura (Hiroshima U., RIISE), Masanobu Yahiro (Kyushu U.)
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Journal Title
Phys. Rev. D
Volume: 93
Issue: 1
Pages: 014505-014505
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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