Threshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K +
Abstract We investigate the $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + decay via various rescattering diagrams. Without introducing genuine exotic resonances, it is shown that the $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) reported by the LHCb collaboration...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-09-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-021-09590-y |
| _version_ | 1818582237178757120 |
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| author | Ying-Hui Ge Xiao-Hai Liu Hong-Wei Ke |
| author_facet | Ying-Hui Ge Xiao-Hai Liu Hong-Wei Ke |
| author_sort | Ying-Hui Ge |
| collection | DOAJ |
| description | Abstract We investigate the $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + decay via various rescattering diagrams. Without introducing genuine exotic resonances, it is shown that the $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) reported by the LHCb collaboration can be simulated by the $$J/\psi K^{*+}$$ J / ψ K ∗ + , $$\psi ^\prime K^+$$ ψ ′ K + and $$\psi ^\prime \phi $$ ψ ′ ϕ threshold cusps, respectively. These cusps are enhanced by some nearby triangle singularities. The X(4685) with $$J^P=1^+$$ J P = 1 + cannot be well simulated by the threshold effects in our model, which implies that it may be a genuine resonance. |
| first_indexed | 2024-12-16T07:46:11Z |
| format | Article |
| id | doaj.art-3314da6efa1d4209a94b3cdb1db95f7a |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-16T07:46:11Z |
| publishDate | 2021-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-3314da6efa1d4209a94b3cdb1db95f7a2022-12-21T22:38:58ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522021-09-018191710.1140/epjc/s10052-021-09590-yThreshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K +Ying-Hui Ge0Xiao-Hai Liu1Hong-Wei Ke2Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin UniversityCenter for Joint Quantum Studies and Department of Physics, School of Science, Tianjin UniversityCenter for Joint Quantum Studies and Department of Physics, School of Science, Tianjin UniversityAbstract We investigate the $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + decay via various rescattering diagrams. Without introducing genuine exotic resonances, it is shown that the $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) reported by the LHCb collaboration can be simulated by the $$J/\psi K^{*+}$$ J / ψ K ∗ + , $$\psi ^\prime K^+$$ ψ ′ K + and $$\psi ^\prime \phi $$ ψ ′ ϕ threshold cusps, respectively. These cusps are enhanced by some nearby triangle singularities. The X(4685) with $$J^P=1^+$$ J P = 1 + cannot be well simulated by the threshold effects in our model, which implies that it may be a genuine resonance.https://doi.org/10.1140/epjc/s10052-021-09590-y |
| spellingShingle | Ying-Hui Ge Xiao-Hai Liu Hong-Wei Ke Threshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + European Physical Journal C: Particles and Fields |
| title | Threshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + |
| title_full | Threshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + |
| title_fullStr | Threshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + |
| title_full_unstemmed | Threshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + |
| title_short | Threshold effects as the origin of $$Z_{cs}(4000)$$ Z cs ( 4000 ) , $$Z_{cs}(4220)$$ Z cs ( 4220 ) and X(4700) observed in $$B^+\rightarrow J/\psi \phi K^+$$ B + → J / ψ ϕ K + |
| title_sort | threshold effects as the origin of z cs 4000 z cs 4000 z cs 4220 z cs 4220 and x 4700 observed in b rightarrow j psi phi k b j ψ ϕ k |
| url | https://doi.org/10.1140/epjc/s10052-021-09590-y |
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