Journal Article

FZJ-2022-02920

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effective range expansion for narrow near-threshold resonances

Baru, V. (Corresponding author) ; Dong, X.-K.Extern* ; Du, M.-L. ; Filin, A.Extern* ; Guo, F.-K.Extern* ; Hanhart, C.FZJ* ; Nefediev, A.Extern* ; Nieves, J.Extern* ; Wang, Q.

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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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

Research Program(s):

1. 5111 - Domain-Specific Simulation Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)

Appears in the scientific report 2022

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Database coverage:
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