Current measurements of the high energy behavior of the pion form factor are obtained from pion electroproduction data. These values are model dependent, utilizing the Vanderhaeghen, Guidal and Laget Regge (VGL) Model for their extraction. Recent work which examined the implementation of gauge invariance in that model suggested that it might lead to extracted pion form factors larger than the true values. Here we introduce a new model which preserves the successes of the VGL Model but implements gauge invariance in a new way. To demonstrate the validity of this new approach, we first use it to extract the pion form factor in a simple toy model. When compared with the previous extraction method, the improved model leads to a more reliable extraction. The success in this simple model leads us to reanalyse the electroproduction cross section data, where we obtain comparable values for the pion form factor to those obtained using the VGL procedure.

中文翻译：

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π电生产的改进强子模型

pion 形状因子的高能量行为的当前测量值是从 pion 电生产数据中获得的。这些值取决于模型，使用 Vanderhaeghen、Guidal 和 Laget Regge (VGL) 模型进行提取。最近的工作检查了该模型中规范不变性的实现，表明它可能导致提取的 pion 形状因子大于真实值。在这里，我们引入了一个新模型，它保留了 VGL 模型的成功之处，但以新的方式实现了规范不变性。为了证明这种新方法的有效性，我们首先使用它来提取简单玩具模型中的 pion 形状因子。与之前的提取方法相比，改进后的模型提取更可靠。这个简单模型的成功使我们重新分析了电生产横截面数据，