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-...
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Format: | Article |
Language: | English |
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EDP Sciences
2024-01-01
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Series: | EPJ Web of Conferences |
Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/01/epjconf_meson2023_03004.pdf |
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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 |