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第七届全国中高能核物理专题研讨会

第七届全国中高能核物理专题研讨会. 高能重离子碰撞中 QCD 一级相变的 强度干涉学信号. 于莉莉 张卫宁 南京林业大学 哈尔滨工业大学. 引言. QTIP 干涉学理论. 粒子发射源的流体动力学演化. 结果和讨论. Freeze-out. Initial state. Expanding state. (with high T & D). (with expanding velocity). (without interaction). 1. 引 言.

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第七届全国中高能核物理专题研讨会

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  1. 第七届全国中高能核物理专题研讨会 高能重离子碰撞中QCD一级相变的 强度干涉学信号 于莉莉 张卫宁 南京林业大学 哈尔滨工业大学

  2. 引言 QTIP 干涉学理论 粒子发射源的流体动力学演化 结果和讨论

  3. Freeze-out Initial state Expanding state (with high T & D) (with expanding velocity) (without interaction) 1. 引 言 • In the absence of pressure gradient, a slow-burning fireball is expected when the initial system is at rest in the mixed phase, and this leads to a considerable time-delay of the system evolution. • 强度干涉学（HBT 关联） Pratt S 1986 Phys. Rev. D 33 1314； Hung C M 1995 Phys. Rev. Lett. 75 4003； Rischke D H 1996 Nucl. Phys. A 608 479； Soff S 2002 Phys. Rev. Lett. 88 072301；Zschiesche D 2002 Phys. Rev. C 65 064902 • FAIR/RHIC etc. • 相干粒子对量子传输（QTIP）的 HBT分析方法

  4. 2. QTIP干涉学理论 单粒子动量分布 Lili Yu, Weining Zhang, Cheukyin Wong, Phys. Rev. C 78, 014908 (2008)

  5. 双粒子动量分布

  6. 3. 粒子发射源的流体动力学演化 A.相对论流体动力学模型

  7. B. 状态方程

  8. QGP Hadron 30GeV/A 10GeV/A Y.B. Ivanov et al Phys. Rev. C 73:044904 (2006) C. 绝热路径

  9. 和 系统能量密度的时空曲线

  10. FAIR 能量的 和 关联函数 4. 结果和讨论

  11. HBT 寿命 t/(fm/c) HBT 半径 R/fm

  12. Y.B. Ivanov et al Phys. Rev. C 73:044904 (2006) • 和 介子发射源的HBT寿命对初始能量密度很敏感，当初始能量密度调到系统的软点时，它们的HBT寿命会明显增加。 2 和 介子这种明显延长的HBT寿命将能在FAIR能量范围内观测到。 3 横向，纵向不同的流体力学演化。

  13. Thank you!

  14. FAIR

  15. Rare-Isotope Production Target Future Beams: Intensity:primary HI 100-fold secondary RIB 10000-fold Species: Z =-1 – 92 (anti-protons to uranium) Energies: ions up to 35 - 45 GeV/u antiprotons 0 -15 GeV/c Precision: full beam cooling Antiproton Production Target Beams now: Z = 1 – 92 (protons to uranium) up to 2 GeV/nucleon Some beam cooling SIS 100/300 GSI today Future facility SIS 18 UNILAC CBM ESR Super FRS HESR PP / AP FLAIR RESR CR NESR 100 m

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