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arXiv 0712.1671hep-ph
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重离子碰撞中每个带电强子横能的饱和和冻结判据

Saturation of Transverse Energy per Charged Hadron and Freeze-Out Criteria in Heavy-Ion Collisions

J. Cleymans, R. Sahoo, D. K. Srivastava, S. Wheaton

摘要:

对于从SPS到RHIC的束能量,每个带电粒子的横向能量$E_T/N_{\textrm{ch}}$在大约0.8 GeV的值处饱和。建立了该值与强子共振气体模型中原初能量和粒子数的冻结判据$E/N \approx 1$ GeV之间的直接联系。

英文摘要:

For beam energies from SPS to RHIC, the transverse energy per charged particle, $E_T/N_{\textrm{ch}}$, saturates at a value of approximately 0.8 GeV. A direct connection between this value and the freeze-out criterium $E/N \approx 1$ GeV for the primordial energy and particle number in the hadronic resonance gas model is established.

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