| Project/Area Number |
16K17696
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kyoto University |
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Principal Investigator |
Hatta Yoshitaka 京都大学, 基礎物理学研究所, 准教授 (00512534)
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| Research Collaborator |
TSUTSUI Shoichiro
BLAIZOT Jean-Paul
Xiao Bo-Wen
YANG Di-Lun
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | 重イオン衝突の熱化 / 非平衡系の場の理論 / ボーズ凝縮 / 相対論的重イオン衝突 / 流体力学 / 楕円フロー / 熱平衡化 / 理論核物理 |
|---|
| Outline of Final Research Achievements |
In relativistic heavy-ion collisions, the high density gluonic matter produced after the collision evolves into a thermalized quark-gluon plasma. It has been suggested that, due to the high gluon occupancy in the initial state, a Bose-Einstein condensate (BEC) of gluons may be formed at an intermediate stage of the nonequilibrium evolution. We study the possibility of the BEC formation based on the 2PI (two-particle irreducible) formalism. We find that, while the system approaches the threshold of BEC formation, it is eventually avoided due to the number-changing inelastic processes. This is in contrast to the finding of previous studies based on the Boltzmann equation where inelastic processes are neglected and a BEC is formed.
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