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arXiv 0807.4827hep-ph
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曲率对强子介质中夸克-胶子等离子体火球统计模型的影响

Effect of the curvature on a statistical model of Quark-Gluon-Plasma fireball in the hadronic medium

S. Somorendro Singh, D. S. Gosain, Yogesh kumar, Agam K. Jha

摘要:

在考虑曲率影响的Ramanathan等统计模型中计算了强子介质中夸克-胶子等离子体火球的自由能。与此曲率的结果被发现产生显着的改善,从早期的结果,我们计算的所有参数。发现具有这种曲率效应的表面张力为$ 0.17 T_{c}^{3}$,其是先前的表面张力值$ 0.078 T_{c}^{3} $的两倍,并且其接近于晶格值$0.24 T_{c}^{3} $。与QGP液滴中的标准声速相比,曲率修正后的声速仍然偏小。

英文摘要:

The free energy of a Quark-Gluon Plasma fireball in the hadronic medium is calculated in the Ramanathan et al. statistical model including the effect of curvature. The result with this curvature is found to produce significant improvement from earlier results in all the parameters we calculated. The surface tension with this curvature effect is found to be $ 0.17 T_{c}^{3}$, which is two times the earlier value of surface tension which is $ 0.078 T_{c}^{3} $, and it is nearly close to the lattice value $0.24 T_{c}^{3} $. The speed of sound calculated with curvature correction is still found to be smaller in comparision with the standard speed of sound in the QGP droplet.

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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