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Journal Article | FZJ-2022-02920 |
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2022
North-Holland Publ.
Amsterdam
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Please use a persistent id in citations: http://hdl.handle.net/2128/31724 doi:10.1016/j.physletb.2022.137290
Abstract: We discuss some general features of the effective range expansion, the content of its parameters with respect to the nature of the pertinent near-threshold states and the necessary modifications in the presence of coupled channels, isospin violations and unstable constituents. As illustrative examples, we analyse the properties of the and states supporting the claim that these exotic states have a predominantly molecular nature.
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