Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects
Abstract. The near-threshold exotic hadrons such as Tcc and X(3872) are naively considered as the hadronic molecular state from the viewpoint of the low-energy universality. However, it is also known that the elementary dominant state is not completely excluded as the internal structure of the near-...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2024-01-01
|
| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/01/epjconf_meson2023_03004.pdf |
| _version_ | 1797299406546927616 |
|---|---|
| author | Kinugawa Tomona Hyodo Tetsuo |
| author_facet | Kinugawa Tomona Hyodo Tetsuo |
| author_sort | Kinugawa Tomona |
| collection | DOAJ |
| description | Abstract. The near-threshold exotic hadrons such as Tcc and X(3872) are naively considered as the hadronic molecular state from the viewpoint of the low-energy universality. However, it is also known that the elementary dominant state is not completely excluded as the internal structure of the near-threshold states. Furthermore, the dominance of molecules is expected to be modified by the decay or coupled channels. We discuss these features of the near-threshold bound states by calculating the compositeness with the effective field theory. |
| first_indexed | 2024-03-07T22:49:14Z |
| format | Article |
| id | doaj.art-2755abd8fd524fa39597d21384276566 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-03-07T22:49:14Z |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-2755abd8fd524fa39597d213842765662024-02-23T10:28:27ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-012910300410.1051/epjconf/202429103004epjconf_meson2023_03004Compositeness of near-threshold exotic hadrons with decay and coupled-channel effectsKinugawa Tomona0Hyodo Tetsuo1Department of Physics, Tokyo Metropolitan UniversityDepartment of Physics, Tokyo Metropolitan UniversityAbstract. The near-threshold exotic hadrons such as Tcc and X(3872) are naively considered as the hadronic molecular state from the viewpoint of the low-energy universality. However, it is also known that the elementary dominant state is not completely excluded as the internal structure of the near-threshold states. Furthermore, the dominance of molecules is expected to be modified by the decay or coupled channels. We discuss these features of the near-threshold bound states by calculating the compositeness with the effective field theory.https://www.epj-conferences.org/articles/epjconf/pdf/2024/01/epjconf_meson2023_03004.pdf |
| spellingShingle | Kinugawa Tomona Hyodo Tetsuo Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects EPJ Web of Conferences |
| title | Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects |
| title_full | Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects |
| title_fullStr | Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects |
| title_full_unstemmed | Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects |
| title_short | Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects |
| title_sort | compositeness of near threshold exotic hadrons with decay and coupled channel effects |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/01/epjconf_meson2023_03004.pdf |
| work_keys_str_mv | AT kinugawatomona compositenessofnearthresholdexotichadronswithdecayandcoupledchanneleffects AT hyodotetsuo compositenessofnearthresholdexotichadronswithdecayandcoupledchanneleffects |