Abstract

We compute the dilepton production rate from deconfined phase of quark-gluon plasma using the quasi-particle model (QPM). The computation is based on an extension of our previous work. In this model, the finite quark mass is replaced by the effective quark mass which is considered as the sum of square of current mass, coupling of thermal and current mass and square of thermal mass. This leads to the modest enhancement in the dilepton production rate. The results indicate that the emission rate is also an increasing function of chemical potential. The study implies that the model results are significantly enhanced with the effective quark mass as compared to thermal quark mass in the low mass region and not altered in the intermediate mass region. So the model using the effective quark mass fits well in the production of dilepton rates.

中文翻译：

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相对论重离子碰撞中Dilepton生产率的简单模型方法

摘要

我们使用准粒子模型（QPM）从夸克-胶子等离子体的受限阶段计算出Dilepton生产率。该计算是基于我们先前工作的扩展。在该模型中，将有限的夸克质量替换为有效的夸克质量，该有效的夸克质量被视为当前质量的平方，热与当前质量的耦合以及热质量的平方之和。这导致双链菌素生产率的适度提高。结果表明，排放速率也是化学势的增加函数。研究表明，与有效夸克质量相比，在低质量区域，模型结果得到有效的夸克质量显着增强，而在中等质量区域，模型结果没有变化。因此，使用有效夸克质量的模型非常适合于产生双链精子的速率。