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arXiv 1810.08445hep-ph
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统计模型中轻夸克和反夸克螺旋度分量结构函数的性质

Properties of structure functions from helicity components\\ of light quarks and antiquarks in the statistical model

Claude Bourrely

摘要:

在十多年前提出的描述部分子结构的量子统计部分子分布方法中,现在已经了解了新的性质,特别是夸克和反夸克之间的关系,这导致了非常特殊的性质。非极化和极化的部分子分布函数(PDF)的同时处理允许确定驱动其行为和作为结果的结构函数的化学势(模型的主参数)。胶子和$q~\bar q$对之间可能存在的关系,导致定义一个玩具模型的非极化和极化胶子。鉴于即将到来的实验结果在大$x$区域的具体预测模型。

英文摘要:

In the quantum statistical parton distributions approach proposed more than one decade ago to describe the parton structure, new properties are now understood, in particular, the relation between quarks and antiquarks which leads to very specific properties. The simultaneous treatment of unpolarized and polarized Parton Distribution Functions (PDFs) allows a determination of thermodynamical potentials (the master parameters of the model) which drive their behavior and as a consequence those of the structure functions. The existence of a possible relation between the gluon and a $q~\bar q$ pair leads to define a toy model for the unpolarized and polarized gluon. In view of forthcoming experimental results in the large $x$ region specific predictions made by the model are presented.

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