arXiv journal 2022.0213 interesting paper - QCD and factorisation

原创于 2022-02-13 10:11:18 发布 · 207 阅读

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这两篇论文探讨了量子色动力学（QCD）中包含截面的质点因子化原理，证明了在所有阶的微扰理论中，质子模型可以被修正以包括QCD相互作用的影响。文章表明，夸克和胶子的包含截面中的质量奇点可以因子化为普遍函数，这些函数校正了部分子分布和衰变函数，并且这种因子化适用于所有主导和次主导对数。

Factorization and the Parton Model in QCD
Phys.Lett.B 78 (1978) 281-284

abstract: We argue that mass-singularities of inclusive cross sections in QCD factor to all orders in perturbation theory as required for a parton model interpretation.

Perturbation Theory and the Parton Model in QCD
Nucl.Phys.B 152 (1979) 285-329

abstract: We prove that for any process which admits a parton-model interpretation, the naive parton model can be modified to include the effects of QCD interactions to all orders in perturbation theory. This requires that the mass singularities in quark and gluon inclusive cross sections factor into universal functions which renormalize the naive parton model distribution and decay functions. We prove that this factorization takes place for all leading and non-leading logs and thus check consistency of the parton model to all orders in perturbation theory.