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arXiv 0801.4631nucl-th
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中心重离子碰撞中的集体效应

Collective effects in central heavy-ion collisions

G. I. Lykasov, A. N. Sissakian, A. S. Sorin, V. D. Toneev

摘要:

假设中心A-A碰撞中产生的无色夸克物体(介子和重子)可能存在局部平衡,考虑了介质中对夸克和胶子横向质量分布的影响。结果表明,这些部分子的平均横动量平方增长,然后饱和时,初始能量的增加。在夸克-胶子弦模型中,它导致了强子横质量谱与碰撞能量的关系,这与在重离子碰撞中观察到的结果相似。与其他方案的比较。

英文摘要:

In-medium effects on transverse-mass distributions of quarks and gluons are considered assuming a possible local equilibrium for colorless quark objects (mesons and baryons) created in central A-A collisions. It is shown that the average transverse momentum squared for these partons grows and then saturates when the initial energy increases. Within the quark-gluon string model it leads to the colliding energy dependence of hadron transverse mass spectra which is similar to that observed in heavy ion collisions. Comparison with other scenarios is given.

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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