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arXiv · 1712.10126

Traps in hadron spectroscopy: Thresholds, triangle singularities, etc

Feng-Kun Guo
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Abstract

The knowledge of hadron spectrum is based on experimental observations of hadronic resonances. The resonances are normally observed as peaks in certain invariant mass distributions. However, neither is a peak necessarily due to the presence of a resonance, nor does a resonance necessarily lead to a peak. Kinematic singularities can also produce peaks. Here, we discuss such possibilities and methods distinguishing genuine resonances from kinematic effects.

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Feng-Kun Guo. 2018-01-01. Traps in hadron spectroscopy: Thresholds, triangle singularities, etc. https://arxiv.org/abs/1712.10126

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