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arXiv 1902.07923hep-ph
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高能CGC/饱和方法中的热辐射和包容性产生

Thermal radiation and inclusive production in the CGC/saturation approach at high energies

E. Gotsman, E. Levin

摘要:

本文在CGC/饱和方法的框架下讨论了强子的包容产生。我们认为,胶子喷流的包容性生产源于附近的饱和动量,即使是小的横向动量值$p_T$。由于在这个区域,理论上,我们知道的散射振幅,我们声称,我们可以提供可靠的估计这一过程。我们证明,在一个被广泛接受的约束模型,描述实验数据,我们需要一个热辐射项。在这个模型中,横动量为$Q_s$量级的部分子(夸克或胶子)衰变为具有给定碎裂函数的强子。然而,我们表明,其他方法的限制可以描述的数据,而不需要的热发射

英文摘要:

In this paper, we discuss the inclusive production of hadrons in the framework of CGC/saturation approach. We argue, that the gluon jet inclusive production stems from the vicinity of the saturation momentum, even for small values of the transverse momenta $p_T$. Since in this region, theoretically, we know the scattering amplitude, we claim that we can provide reliable estimates for this process. We demonstrate, that in a widely accepted model for confinement, to describe the experimental data, we require a thermal radiation term. In this model the parton (quark or gluon) with the transverse momenta of the order of $Q_s$ decays into hadrons with the given fragmentation functions. However, we show that other approaches for the confinement could describe the data, without a need for the thermal emission

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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