Effective range expansion for narrow near-threshold resonances

Effective range expansion for narrow near-threshold resonances

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 exampl...

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Bibliographic Details
Main Authors: Vadim Baru, Xiang-Kun Dong, Meng-Lin Du, Arseniy Filin, Feng-Kun Guo, Christoph Hanhart, Alexey Nefediev, Juan Nieves, Qian Wang
Format: Article
Language:English
Published: Elsevier 2022-10-01
Series:Physics Letters B
Subjects:
Effective range expansion
Exotic states
Tetraquarks
Hadronic molecules
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269322004245

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http://www.sciencedirect.com/science/article/pii/S0370269322004245

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