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arXiv 2209.09474hep-ph
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冲击波模型如何描述5个TeV p-Pb碰撞的PID强子谱

How the Blast-Wave Model Describes PID Hadron Spectra from 5 TeV p-Pb Collisions

Thomas A. Trainor

摘要:

爆轰波(BW)谱模型已被广泛地应用于核-核碰撞数据中,目的是证明更中心的A-A碰撞中夸克-胶子等离子体(QGP)的形成。最近,BW模型已被应用于p-p,d-Au和p-Pb碰撞。这样的结果被解释为表明“集体性”(流)和QGP出现在较小的系统。我考虑BW模型和支持假设的变化。在这篇演讲中,我回顾BW分析识别强子谱从5 TeV的p-Pb碰撞和检查碰撞中心的模型谱的形状演变。我使用传统的统计方法来评估数据模型的拟合质量。我的结论是BW模型不是一个有效的数据模型。

英文摘要:

The blast-wave (BW) spectrum model has been applied extensively to nucleus-nucleus collision data with the intention to demonstrate formation of a quark-gluon plasma (QGP) in more-central A-A collisions. More recently the BW model has been applied to p-p, d-Au and p-Pb collisions. Such results are interpreted to indicate that ``collectivity'' (flows) and QGP appear in smaller systems. I consider variations of the BW model and supporting assumptions. In this talk I review BW analysis of identified-hadron spectra from 5 TeV p-Pb collisions and examine the shape evolution of model spectra with collision centrality. I evaluate data-model fit quality using conventional statistical measures. I conclude that the BW model is not a valid data model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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