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| Main Authors: | , , |
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| Format: | Preprint |
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2024
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| Online Access: | https://arxiv.org/abs/2408.17076 |
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| _version_ | 1866915151381266432 |
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| author | Wang, Xiao-Yun Gao, Yuan Liu, Xiang |
| author_facet | Wang, Xiao-Yun Gao, Yuan Liu, Xiang |
| contents | In this study, applying the effective Lagrangian approach, we investigate the reaction $π^-p\rightarrow K^{*}Σ$ to explore the production of the hidden-strange molecular pentaquarks $P_{s\bar{s}}$. Specifically, we analyze two scenarios, where the $J^P$ quantum numbers of $P_{s\bar{s}}$ are $3/2^-$ and $1/2^-$. Our results show that the contribution from $s$-channel $P_{s\bar{s}}$ exchange dominates the total cross section, surpassing those from $t$-channel $K^{(*)}$ exchange and $u$-channel $Σ$ exchange. Additionally, we present predictions for the differential cross section of the $π^-p\rightarrow K^{*}Σ$ process. Finally, we extend the 2-to-2 scattering process to the 2-to-3 Dalitz process and provide theoretical predictions for this scenario. Our findings suggest that the cross section for the $π^-p \rightarrow K^{*}Σ\rightarrow K^+π^-Σ^0$ process can reach several tens of $μb$ near the threshold, making it highly favorable for experimental measurement. However, the current scarcity of experimental data for the $π^-p\rightarrow K^{*}Σ$ reaction at threshold energy limits our ability to determine the properties of the hidden-strange molecular pentaquarks $P_{s\bar{s}}$ and related physical quantities. Therefore, additional experimental measurements of the $π^-p \rightarrow K^{*}Σ$ reaction at threshold are strongly encouraged, and correlation studies could be pursued at facilities such as J-PARC, AMBER, and upcoming HIKE and HIAF meson beam experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_17076 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Production potential of hidden-strange molecular pentaquarks through the $π^-p\rightarrow K^{*}Σ$ process Wang, Xiao-Yun Gao, Yuan Liu, Xiang High Energy Physics - Phenomenology In this study, applying the effective Lagrangian approach, we investigate the reaction $π^-p\rightarrow K^{*}Σ$ to explore the production of the hidden-strange molecular pentaquarks $P_{s\bar{s}}$. Specifically, we analyze two scenarios, where the $J^P$ quantum numbers of $P_{s\bar{s}}$ are $3/2^-$ and $1/2^-$. Our results show that the contribution from $s$-channel $P_{s\bar{s}}$ exchange dominates the total cross section, surpassing those from $t$-channel $K^{(*)}$ exchange and $u$-channel $Σ$ exchange. Additionally, we present predictions for the differential cross section of the $π^-p\rightarrow K^{*}Σ$ process. Finally, we extend the 2-to-2 scattering process to the 2-to-3 Dalitz process and provide theoretical predictions for this scenario. Our findings suggest that the cross section for the $π^-p \rightarrow K^{*}Σ\rightarrow K^+π^-Σ^0$ process can reach several tens of $μb$ near the threshold, making it highly favorable for experimental measurement. However, the current scarcity of experimental data for the $π^-p\rightarrow K^{*}Σ$ reaction at threshold energy limits our ability to determine the properties of the hidden-strange molecular pentaquarks $P_{s\bar{s}}$ and related physical quantities. Therefore, additional experimental measurements of the $π^-p \rightarrow K^{*}Σ$ reaction at threshold are strongly encouraged, and correlation studies could be pursued at facilities such as J-PARC, AMBER, and upcoming HIKE and HIAF meson beam experiments. |
| title | Production potential of hidden-strange molecular pentaquarks through the $π^-p\rightarrow K^{*}Σ$ process |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2408.17076 |