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Coupling hadron-hadron thresholds within a chiral quark model approach

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arxiv 2012.10105 v1 pith:PVIT75UJ submitted 2020-12-18 hep-ph

Pablo G. Ortega , David R. Entem This is my paper
classification hep-ph
keywords modelquarkheavynaivethresholdschiralcouplinghadron
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Heavy hadron spectroscopy was well understood within the naive quark model until the end of the past century. However, in 2003, the $X(3872)$ was discovered, with puzzling properties difficult to understand in the simple naive quark model picture. This state made clear that excited states of heavy mesons should be coupled to two-meson states in order to understand not only the masses but, in some cases, unexpected decay properties. In this work we will review how the naive quark model can be complemented with the coupling to two hadron thresholds. This program has been already applied to the heavy meson spectrum with the chiral quark model and we show some examples where thresholds are of special relevance.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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