Production and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d d
Abstract We use an effective Lagrangian approach to investigate the production of the anticharmed pentaquark state $$P_{\bar{c}s}^{(*)-}$$ P c ¯ s ( ∗ ) - with the minimal quark content $$\bar{c}sudd$$ c ¯ s u d d in the $$\Lambda _b^0$$ Λ b 0 decay. In our calculation, the $$P_{\bar{c}s}^{(*)-}$$ P...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13738-x |
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| author | Shi-Dong Liu Xiao-Yun Wang Xiao-Hai Liu Gang Li |
| author_facet | Shi-Dong Liu Xiao-Yun Wang Xiao-Hai Liu Gang Li |
| author_sort | Shi-Dong Liu |
| collection | DOAJ |
| description | Abstract We use an effective Lagrangian approach to investigate the production of the anticharmed pentaquark state $$P_{\bar{c}s}^{(*)-}$$ P c ¯ s ( ∗ ) - with the minimal quark content $$\bar{c}sudd$$ c ¯ s u d d in the $$\Lambda _b^0$$ Λ b 0 decay. In our calculation, the $$P_{\bar{c}s}^{(*)-}$$ P c ¯ s ( ∗ ) - is considered as the molecule state of the $$nD_{s0(s1)}^{-}$$ n D s 0 ( s 1 ) - in an S wave, and its production and decay occur via triangle loops at the hadron level. With the moderate model parameters, the computed results suggest that the branching fractions of $$\Lambda _b^0\rightarrow P_{\bar{c}s}^{(*)-} D^+ $$ Λ b 0 → P c ¯ s ( ∗ ) - D + can reach approximately $$10^{-4}$$ 10 - 4 . The possible decay modes $$ P_{\bar{c}s}^{(*)-} \rightarrow \Lambda D^{(*)-}$$ P c ¯ s ( ∗ ) - → Λ D ( ∗ ) - and $$ P_{\bar{c}s}^{(*)-} \rightarrow \Sigma D^{(*)-}$$ P c ¯ s ( ∗ ) - → Σ D ( ∗ ) - are also investigated. It is hoped that these predictions could be helpful in searching for the anticharmed-strange pentaquark candidates in future LHCb experiments. |
| format | Article |
| id | doaj-art-f3b25453c2dd43419362bdf46e3dea08 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-f3b25453c2dd43419362bdf46e3dea082025-01-26T12:49:11ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-01-0185111110.1140/epjc/s10052-024-13738-xProduction and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d dShi-Dong Liu0Xiao-Yun Wang1Xiao-Hai Liu2Gang Li3Center 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 UniversityCollege of Physics and Engineering, Qufu Normal UniversityAbstract We use an effective Lagrangian approach to investigate the production of the anticharmed pentaquark state $$P_{\bar{c}s}^{(*)-}$$ P c ¯ s ( ∗ ) - with the minimal quark content $$\bar{c}sudd$$ c ¯ s u d d in the $$\Lambda _b^0$$ Λ b 0 decay. In our calculation, the $$P_{\bar{c}s}^{(*)-}$$ P c ¯ s ( ∗ ) - is considered as the molecule state of the $$nD_{s0(s1)}^{-}$$ n D s 0 ( s 1 ) - in an S wave, and its production and decay occur via triangle loops at the hadron level. With the moderate model parameters, the computed results suggest that the branching fractions of $$\Lambda _b^0\rightarrow P_{\bar{c}s}^{(*)-} D^+ $$ Λ b 0 → P c ¯ s ( ∗ ) - D + can reach approximately $$10^{-4}$$ 10 - 4 . The possible decay modes $$ P_{\bar{c}s}^{(*)-} \rightarrow \Lambda D^{(*)-}$$ P c ¯ s ( ∗ ) - → Λ D ( ∗ ) - and $$ P_{\bar{c}s}^{(*)-} \rightarrow \Sigma D^{(*)-}$$ P c ¯ s ( ∗ ) - → Σ D ( ∗ ) - are also investigated. It is hoped that these predictions could be helpful in searching for the anticharmed-strange pentaquark candidates in future LHCb experiments.https://doi.org/10.1140/epjc/s10052-024-13738-x |
| spellingShingle | Shi-Dong Liu Xiao-Yun Wang Xiao-Hai Liu Gang Li Production and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d d European Physical Journal C: Particles and Fields |
| title | Production and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d d |
| title_full | Production and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d d |
| title_fullStr | Production and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d d |
| title_full_unstemmed | Production and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d d |
| title_short | Production and decay of anticharmed pentaquark state with quark content $$\bar{c}sudd$$ c ¯ s u d d |
| title_sort | production and decay of anticharmed pentaquark state with quark content bar c sudd c ¯ s u d d |
| url | https://doi.org/10.1140/epjc/s10052-024-13738-x |
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