gpd的基本性质及其建模

Proceedings of Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions — PoS(LC2019) Pub Date : 2019-12-19 DOI:10.22323/1.374.0065

C. Mezrag, N. Chouika, H. Moutarde, J. Rodríguez-Quintero

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引用次数: 0

摘要

本文提出了一种基于Radon变换对广义Parton分布(GPDs)建模的新方法。它允许同时满足应用于gpd的所有理论约束，特别是多项式性和正性。更具体地说，我们展示了如何在光前波函数(lfwf)重叠的框架内系统地恢复多项式。它提供了一种系统的方法来扩展仅在DGLAP运动区域中定义的模型到ERBL运动区域。然后，我们使用lfwf模型举例说明我们的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Basic properties of GPDs and modelling of the latter

We present here a new method based on the Radon transform to model Generalised Parton Distributions (GPDs). It allows to fulfil all theoretical constraints applying on GPDs, especially polynomiality and positivity at the same time. More specifically, we show how polynomiality can be systematically restored within the framework of the overlaps of Lightfront Wave Functions (LFWFs). It provides a systematic way to extend models defined solely in the DGLAP kinematical region to the ERBL one. We then exemplify our approach using LFWFs models.

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Proceedings of Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions — PoS(LC2019)

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