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arXiv 1305.6180hep-ph
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LHC质子-质子碰撞的自相似双部分子分布函数模型

A Model Construction of Self-similarity based Double Parton Distribution Functions for proton-proton collision at LHC

D K Choudhury, Akbari Jahan

摘要:

我们构建了一个模型的双重部分子分布函数(dPDF)的概念的基础上的自相似性,追求早期的小\textit{x}物理在HERA。最一般的dPDF格式包含了从LHC质子-质子碰撞数据拟合的总共13个参数。结果表明,所构造的dPDF并没有按照QCD期望分解成两个单PDF,并且满足在运动学边界$x_{1}+x_{2}=1 $(其中$x_{1}$和$x_{2}$是两个部分子的纵向分数动量)处dPDF为零的条件.

英文摘要:

We construct a model for double parton distribution functions (dPDFs) based on the notion of self-similarity, pursued earlier for small \textit{x} physics at HERA. The most general form of dPDFs contains total thirteen parameters to be fitted from data of proton-proton collision at LHC. It is shown that the constructed dPDF does not factorize into two single PDFs in conformity with QCD expectation, and it satisfies the condition that at the kinematic boundary $x_{1}+x_{2}=1 $ (where $x_{1}$ and $x_{2}$ are the longitudinal fractional momenta of two partons), the dPDF vanishes.

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