Traps in hadron spectroscopy: Thresholds, triangle singularities, etc
High Energy Physics - Phenomenology
2018-01-03 v2 High Energy Physics - Experiment
Nuclear Theory
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.
Cite
@article{arxiv.1712.10126,
title = {Traps in hadron spectroscopy: Thresholds, triangle singularities, etc},
author = {Feng-Kun Guo},
journal= {arXiv preprint arXiv:1712.10126},
year = {2018}
}
Comments
11 pages, 3 figures. Plenary talk at the XVII International Conference on Hadron Spectroscopy and Structure (HADRON2017), 25-29 Sept., 2017, Salamanca, Spain