Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactions
Abstract We report on the reactions $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ and $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K}\Xi ^*(1530) \;(\Xi ^*(1530)\rightarrow \pi \Xi $$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ ∗ ( 1530 ) ( Ξ ∗ ( 1530 ) → π Ξ ), and calculate the ma...
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| Language: | English |
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2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13710-9 |
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| author | Jing Song Wei-Hong Liang Chu-Wen Xiao Jorgivan Morais Dias Eulogio Oset |
| author_facet | Jing Song Wei-Hong Liang Chu-Wen Xiao Jorgivan Morais Dias Eulogio Oset |
| author_sort | Jing Song |
| collection | DOAJ |
| description | Abstract We report on the reactions $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ and $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K}\Xi ^*(1530) \;(\Xi ^*(1530)\rightarrow \pi \Xi $$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ ∗ ( 1530 ) ( Ξ ∗ ( 1530 ) → π Ξ ), and calculate the mass distributions $$\frac{\textrm{d}\Gamma }{\textrm{d}M_\text {inv}(\bar{K}\Xi )}$$ d Γ d M inv ( K ¯ Ξ ) and $$\frac{\textrm{d}\Gamma }{\textrm{d}M_\text {inv}(\bar{K}\Xi ^*)}$$ d Γ d M inv ( K ¯ Ξ ∗ ) , respectively. We obtain clear peaks corresponding to the $$\Omega (2012)$$ Ω ( 2012 ) . From the decay of $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K}\Xi ^*$$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ ∗ , we also get a second, broader, peak around $$2035\,\mathrm MeV$$ 2035 M e V , which comes from the $$\Omega (2012)$$ Ω ( 2012 ) decay to $$\bar{K}\Xi ^*$$ K ¯ Ξ ∗ . This second peak is closely tied to the molecular picture of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\bar{K}\Xi ^*(1530)$$ K ¯ Ξ ∗ ( 1530 ) and $$\eta \Omega $$ η Ω components. Its observation would provide a boost to the molecular picture of the $$\Omega (2012)$$ Ω ( 2012 ) . |
| format | Article |
| id | doaj-art-8a8a9654d3ca4e59aa76976684513145 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-8a8a9654d3ca4e59aa769766845131452025-02-02T12:38:47ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-0184121710.1140/epjc/s10052-024-13710-9Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactionsJing Song0Wei-Hong Liang1Chu-Wen Xiao2Jorgivan Morais Dias3Eulogio Oset4School of Physics, Beihang UniversityDepartment of Physics, Guangxi Normal UniversityDepartment of Physics, Guangxi Normal UniversityCAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of SciencesDepartamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigación de PaternaAbstract We report on the reactions $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ and $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K}\Xi ^*(1530) \;(\Xi ^*(1530)\rightarrow \pi \Xi $$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ ∗ ( 1530 ) ( Ξ ∗ ( 1530 ) → π Ξ ), and calculate the mass distributions $$\frac{\textrm{d}\Gamma }{\textrm{d}M_\text {inv}(\bar{K}\Xi )}$$ d Γ d M inv ( K ¯ Ξ ) and $$\frac{\textrm{d}\Gamma }{\textrm{d}M_\text {inv}(\bar{K}\Xi ^*)}$$ d Γ d M inv ( K ¯ Ξ ∗ ) , respectively. We obtain clear peaks corresponding to the $$\Omega (2012)$$ Ω ( 2012 ) . From the decay of $$\psi (3770)\rightarrow \bar{\Omega }^+ \bar{K}\Xi ^*$$ ψ ( 3770 ) → Ω ¯ + K ¯ Ξ ∗ , we also get a second, broader, peak around $$2035\,\mathrm MeV$$ 2035 M e V , which comes from the $$\Omega (2012)$$ Ω ( 2012 ) decay to $$\bar{K}\Xi ^*$$ K ¯ Ξ ∗ . This second peak is closely tied to the molecular picture of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\bar{K}\Xi ^*(1530)$$ K ¯ Ξ ∗ ( 1530 ) and $$\eta \Omega $$ η Ω components. Its observation would provide a boost to the molecular picture of the $$\Omega (2012)$$ Ω ( 2012 ) .https://doi.org/10.1140/epjc/s10052-024-13710-9 |
| spellingShingle | Jing Song Wei-Hong Liang Chu-Wen Xiao Jorgivan Morais Dias Eulogio Oset Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactions European Physical Journal C: Particles and Fields |
| title | Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactions |
| title_full | Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactions |
| title_fullStr | Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactions |
| title_full_unstemmed | Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactions |
| title_short | Testing the molecular nature of the $$\Omega (2012)$$ Ω ( 2012 ) with the $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi $$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ and $$\psi (3770) \rightarrow \bar{\Omega } \bar{K} \Xi ^*(1530) (\bar{\Omega } \bar{K} \pi \Xi )$$ ψ ( 3770 ) → Ω ¯ K ¯ Ξ ∗ ( 1530 ) ( Ω ¯ K ¯ π Ξ ) reactions |
| title_sort | testing the molecular nature of the omega 2012 ω 2012 with the psi 3770 rightarrow bar omega bar k xi ψ 3770 ω ¯ k ¯ ξ and psi 3770 rightarrow bar omega bar k xi 1530 bar omega bar k pi xi ψ 3770 ω ¯ k ¯ ξ ∗ 1530 ω ¯ k ¯ π ξ reactions |
| url | https://doi.org/10.1140/epjc/s10052-024-13710-9 |
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