Autor: |
Vadim Baru, Xiang-Kun Dong, Meng-Lin Du, Arseniy Filin, Feng-Kun Guo, Christoph Hanhart, Alexey Nefediev, Juan Nieves, Qian Wang |
Jazyk: |
angličtina |
Rok vydání: |
2022 |
Předmět: |
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Zdroj: |
Physics Letters B, Vol 833, Iss , Pp 137290- (2022) |
Druh dokumentu: |
article |
ISSN: |
0370-2693 |
DOI: |
10.1016/j.physletb.2022.137290 |
Popis: |
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 χc1(3872) and Tcc+ states supporting the claim that these exotic states have a predominantly molecular nature. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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