$$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ”
Abstract We perform a theoretical study of the $$J/\psi \rightarrow \omega (\phi ) K^* \bar{K} + c.c. \rightarrow \omega (\phi ) K^0 \pi ^+ K^-$$ J / ψ → ω ( ϕ ) K ∗ K ¯ + c . c . → ω ( ϕ ) K 0 π + K - reactions with the assumption that the $$f_1(1285)$$ f 1 ( 1285 ) is dynamically generated from a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-12405-5 |
| _version_ | 1797233332343275520 |
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| author | Jia-Xin Lin Jia-Ting Li Wei-Hong Liang Hua-Xing Chen Eulogio Oset |
| author_facet | Jia-Xin Lin Jia-Ting Li Wei-Hong Liang Hua-Xing Chen Eulogio Oset |
| author_sort | Jia-Xin Lin |
| collection | DOAJ |
| description | Abstract We perform a theoretical study of the $$J/\psi \rightarrow \omega (\phi ) K^* \bar{K} + c.c. \rightarrow \omega (\phi ) K^0 \pi ^+ K^-$$ J / ψ → ω ( ϕ ) K ∗ K ¯ + c . c . → ω ( ϕ ) K 0 π + K - reactions with the assumption that the $$f_1(1285)$$ f 1 ( 1285 ) is dynamically generated from a single channel $$K^* \bar{K} + c.c$$ K ∗ K ¯ + c . c interaction in the chiral unitary approach. Two peaks in the $$K^0 \pi ^+ K^-$$ K 0 π + K - invariant mass distribution are observed, one clear peak locates at the $$f_1(1285)$$ f 1 ( 1285 ) nominal mass, the other peak locates at around $$1420 \text {MeV}$$ 1420 MeV with about $$70 \text {MeV}$$ 70 MeV width. We conclude that the former peak is associated with the $$f_1(1285)$$ f 1 ( 1285 ) and the latter peak is not a genuine resonance but a manifestation of the kinematic effect in the higher energy region caused by the $$K^* \bar{K} + c.c.$$ K ∗ K ¯ + c . c . decay mode of the $$f_1(1285)$$ f 1 ( 1285 ) . |
| first_indexed | 2024-03-08T12:34:29Z |
| format | Article |
| id | doaj.art-7f0cf1f0d39940a08f685c098acb7803 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T16:14:29Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-7f0cf1f0d39940a08f685c098acb78032024-03-31T11:32:14ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-01-018411810.1140/epjc/s10052-024-12405-5$$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ”Jia-Xin Lin0Jia-Ting Li1Wei-Hong Liang2Hua-Xing Chen3Eulogio Oset4Department of Physics, Guangxi Normal UniversityDepartment of Physics, Guangxi Normal UniversityDepartment of Physics, Guangxi Normal UniversitySchool of Physics, Southeast UniversityDepartment of Physics, Guangxi Normal UniversityAbstract We perform a theoretical study of the $$J/\psi \rightarrow \omega (\phi ) K^* \bar{K} + c.c. \rightarrow \omega (\phi ) K^0 \pi ^+ K^-$$ J / ψ → ω ( ϕ ) K ∗ K ¯ + c . c . → ω ( ϕ ) K 0 π + K - reactions with the assumption that the $$f_1(1285)$$ f 1 ( 1285 ) is dynamically generated from a single channel $$K^* \bar{K} + c.c$$ K ∗ K ¯ + c . c interaction in the chiral unitary approach. Two peaks in the $$K^0 \pi ^+ K^-$$ K 0 π + K - invariant mass distribution are observed, one clear peak locates at the $$f_1(1285)$$ f 1 ( 1285 ) nominal mass, the other peak locates at around $$1420 \text {MeV}$$ 1420 MeV with about $$70 \text {MeV}$$ 70 MeV width. We conclude that the former peak is associated with the $$f_1(1285)$$ f 1 ( 1285 ) and the latter peak is not a genuine resonance but a manifestation of the kinematic effect in the higher energy region caused by the $$K^* \bar{K} + c.c.$$ K ∗ K ¯ + c . c . decay mode of the $$f_1(1285)$$ f 1 ( 1285 ) .https://doi.org/10.1140/epjc/s10052-024-12405-5 |
| spellingShingle | Jia-Xin Lin Jia-Ting Li Wei-Hong Liang Hua-Xing Chen Eulogio Oset $$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ” European Physical Journal C: Particles and Fields |
| title | $$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ” |
| title_full | $$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ” |
| title_fullStr | $$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ” |
| title_full_unstemmed | $$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ” |
| title_short | $$\varvec{J/\psi }$$ J / ψ decays into $$\omega (\phi ) f_1(1285)$$ ω ( ϕ ) f 1 ( 1285 ) and $$\omega (\phi ) ``f_1(1420)$$ ω ( ϕ ) ` ` f 1 ( 1420 ) ” |
| title_sort | varvec j psi j ψ decays into omega phi f 1 1285 ω ϕ f 1 1285 and omega phi f 1 1420 ω ϕ f 1 1420 |
| url | https://doi.org/10.1140/epjc/s10052-024-12405-5 |
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