Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π +
Abstract Recently, the Belle and LHCb Collaborations have measured the $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + decay and reported the $$K^- p$$ K - p invariant mass distribution, which shows a clear cusp structure around the $$\eta \Lambda $$ η Λ threshold. In this work, we have...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13616-6 |
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| author | Sheng-Chao Zhang Man-Yu Duan Wen-Tao Lyu Guan-Ying Wang Jing-Yu Zhu En Wang |
| author_facet | Sheng-Chao Zhang Man-Yu Duan Wen-Tao Lyu Guan-Ying Wang Jing-Yu Zhu En Wang |
| author_sort | Sheng-Chao Zhang |
| collection | DOAJ |
| description | Abstract Recently, the Belle and LHCb Collaborations have measured the $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + decay and reported the $$K^- p$$ K - p invariant mass distribution, which shows a clear cusp structure around the $$\eta \Lambda $$ η Λ threshold. In this work, we have analyzed this process by considering the triangle mechanism and the S-wave pseudoscalar meson-octet baryon interactions within the chiral unitary approach, which dynamically generates the $$\Lambda (1670)$$ Λ ( 1670 ) . Our results are in good agreement with the Belle measurements, which implies that the cusp structure around $$\eta \Lambda $$ η Λ threshold could be associated with the $$\Lambda (1670)$$ Λ ( 1670 ) with the molecular nature. |
| format | Article |
| id | doaj-art-4e46a172969e4db9b651e63bac9a74dc |
| 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-4e46a172969e4db9b651e63bac9a74dc2025-02-02T12:39:15ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-0184121810.1140/epjc/s10052-024-13616-6Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π +Sheng-Chao Zhang0Man-Yu Duan1Wen-Tao Lyu2Guan-Ying Wang3Jing-Yu Zhu4En Wang5School of Physics and Electronics, Henan UniversitySchool of Physics, Southeast UniversitySchool of Physics, Zhengzhou UniversitySchool of Physics and Electronics, Henan UniversitySchool of Physics, Zhengzhou UniversitySchool of Physics, Zhengzhou UniversityAbstract Recently, the Belle and LHCb Collaborations have measured the $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + decay and reported the $$K^- p$$ K - p invariant mass distribution, which shows a clear cusp structure around the $$\eta \Lambda $$ η Λ threshold. In this work, we have analyzed this process by considering the triangle mechanism and the S-wave pseudoscalar meson-octet baryon interactions within the chiral unitary approach, which dynamically generates the $$\Lambda (1670)$$ Λ ( 1670 ) . Our results are in good agreement with the Belle measurements, which implies that the cusp structure around $$\eta \Lambda $$ η Λ threshold could be associated with the $$\Lambda (1670)$$ Λ ( 1670 ) with the molecular nature.https://doi.org/10.1140/epjc/s10052-024-13616-6 |
| spellingShingle | Sheng-Chao Zhang Man-Yu Duan Wen-Tao Lyu Guan-Ying Wang Jing-Yu Zhu En Wang Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + European Physical Journal C: Particles and Fields |
| title | Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + |
| title_full | Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + |
| title_fullStr | Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + |
| title_full_unstemmed | Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + |
| title_short | Explore the properties of $$\Lambda (1670)$$ Λ ( 1670 ) in the Cabibbo-favored process $$\Lambda ^+_c \rightarrow p K^- \pi ^+$$ Λ c + → p K - π + |
| title_sort | explore the properties of lambda 1670 λ 1670 in the cabibbo favored process lambda c rightarrow p k pi λ c p k π |
| url | https://doi.org/10.1140/epjc/s10052-024-13616-6 |
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