Investigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbers
Abstract Hybrid mesons occupy a unique position in the hadronic spectrum, offering a valuable insight into the non-perturbative nature of the glue field. Hybrid states with exotic $$J^{PC}$$ J PC quantum numbers, such as the $$1^{-+}$$ 1 - + , $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - , cannot mix with...
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| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14509-y |
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| author | Bing Chen Xiang Liu |
| author_facet | Bing Chen Xiang Liu |
| author_sort | Bing Chen |
| collection | DOAJ |
| description | Abstract Hybrid mesons occupy a unique position in the hadronic spectrum, offering a valuable insight into the non-perturbative nature of the glue field. Hybrid states with exotic $$J^{PC}$$ J PC quantum numbers, such as the $$1^{-+}$$ 1 - + , $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - , cannot mix with conventional $$q\bar{q}$$ q q ¯ mesons, making them critical for establishing the full spectrum of hybrid mesons. In this work, we investigate the masses and the strong decays of $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - hybrid mesons, which could be regarded as the first orbitally excited states of the $$\pi _1(1600)$$ π 1 ( 1600 ) and $$\eta _1(1855)$$ η 1 ( 1855 ) mesons. We develop a constituent gluon model and apply it to study the mass spectra and decay modes of these exotic states. Our results suggest that experiment may searched for these $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - hybrid mesons in the mass region between 2.0 and 2.4 GeV. Additionally, we identify some key decay channels which should be targeted in future experiments. |
| format | Article |
| id | doaj-art-1e76da64a3f34b19921a00da2d7665da |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-1e76da64a3f34b19921a00da2d7665da2025-08-20T03:42:56ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-07-0185711410.1140/epjc/s10052-025-14509-yInvestigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbersBing Chen0Xiang Liu1School of Electrical and Electronic Engineering, Anhui Science and Technology UniversitySchool of Physical Science and Technology, Lanzhou UniversityAbstract Hybrid mesons occupy a unique position in the hadronic spectrum, offering a valuable insight into the non-perturbative nature of the glue field. Hybrid states with exotic $$J^{PC}$$ J PC quantum numbers, such as the $$1^{-+}$$ 1 - + , $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - , cannot mix with conventional $$q\bar{q}$$ q q ¯ mesons, making them critical for establishing the full spectrum of hybrid mesons. In this work, we investigate the masses and the strong decays of $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - hybrid mesons, which could be regarded as the first orbitally excited states of the $$\pi _1(1600)$$ π 1 ( 1600 ) and $$\eta _1(1855)$$ η 1 ( 1855 ) mesons. We develop a constituent gluon model and apply it to study the mass spectra and decay modes of these exotic states. Our results suggest that experiment may searched for these $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - hybrid mesons in the mass region between 2.0 and 2.4 GeV. Additionally, we identify some key decay channels which should be targeted in future experiments.https://doi.org/10.1140/epjc/s10052-025-14509-y |
| spellingShingle | Bing Chen Xiang Liu Investigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbers European Physical Journal C: Particles and Fields |
| title | Investigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbers |
| title_full | Investigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbers |
| title_fullStr | Investigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbers |
| title_full_unstemmed | Investigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbers |
| title_short | Investigating hybrid mesons with $$0^{+-}$$ 0 + - and $$2^{+-}$$ 2 + - exotic quantum numbers |
| title_sort | investigating hybrid mesons with 0 0 and 2 2 exotic quantum numbers |
| url | https://doi.org/10.1140/epjc/s10052-025-14509-y |
| work_keys_str_mv | AT bingchen investigatinghybridmesonswith00and22exoticquantumnumbers AT xiangliu investigatinghybridmesonswith00and22exoticquantumnumbers |