Dyson-Schwinger方法中的共振特性

Proceedings of Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions — PoS(LC2019) Pub Date : 2019-12-18 DOI:10.22323/1.374.0003

G. Eichmann

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引用次数: 1

摘要

我们简要总结了Dyson-Schwinger和Bethe-Salpeter强子光谱方法，并报告了在此框架下确定共振性质的最新进展。我们举例说明了使用标量模型提取共振，其中我们求解了四点散射振幅的散射方程，并提取了第二黎曼片上的极点位置以及相移。

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Towards resonance properties in the Dyson-Schwinger approach

We give a brief summary of the Dyson-Schwinger and Bethe-Salpeter approach to hadron spectroscopy and report on recent progress in determining resonance properties in this framework. We exemplify the extraction of resonances using a scalar model, where we solve the scattering equation for the four-point scattering amplitude and extract the pole locations on the second Riemann sheet as well as the phase shifts.

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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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