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arXiv 0905.2511hep-ph
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彩虹阶梯之外的婴儿步骤

Baby steps beyond rainbow-ladder

Richard Williams, Christian S. Fischer

摘要:

在非微扰的Dyson-Schwinger方程(DSE)和Bethe-Salpeter方程(BSE)框架下,讨论了在轻介子中包含单胶子交换以外的修正的影响。我们这样做,考虑unquenching效果的形式强子共振的贡献,特别是π交换,并列入占主导地位的胶子自相互作用的夸克胶子顶点。因此,我们的步骤的从头计算描述轻介子的泛函方法。

英文摘要:

We discuss the impact of including corrections beyond single gluon exchange in light mesons within the nonperturbative framework of Dyson-Schwinger equations (DSE) and Bethe-Salpeter equations (BSE). We do this by considering unquenching effects in the form of hadronic resonance contributions, notably pion exchange, and by the inclusion of the dominant gluon self-interactions to the quark-gluon vertex. Thus we make steps towards an ab initio description of light mesons by functional methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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