Prediction of charmed-bottom pentaquarks in quark model
Abstract Inspired by the fully heavy tetraquark states reported by the LHCb, ATLAS and CMS Collaborations, we perform a systematical investigation of the low-lying fully heavy pentaquark systems composed of charm and bottom quarks (anti-quark) in the chiral quark model. With the help of the channel-...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-07-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11810-6 |
| _version_ | 1827821200025321472 |
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| author | Ye Yan Yuheng Wu Hongxia Huang Jialun Ping Xinmei Zhu |
| author_facet | Ye Yan Yuheng Wu Hongxia Huang Jialun Ping Xinmei Zhu |
| author_sort | Ye Yan |
| collection | DOAJ |
| description | Abstract Inspired by the fully heavy tetraquark states reported by the LHCb, ATLAS and CMS Collaborations, we perform a systematical investigation of the low-lying fully heavy pentaquark systems composed of charm and bottom quarks (anti-quark) in the chiral quark model. With the help of the channel-coupling, we obtain several fully heavy pentaquark candidates, which are $$cccc\bar{b}$$ c c c c b ¯ and $$bbbb\bar{c}$$ b b b b c ¯ systems with $$J^P = 1/2^-$$ J P = 1 / 2 - and $$3/2^-$$ 3 / 2 - , $$cccb\bar{c}$$ c c c b c ¯ , $$bbbc\bar{b}$$ b b b c b ¯ , $$cccb\bar{b}$$ c c c b b ¯ and $$bbbc\bar{c}$$ b b b c c ¯ systems with $$J^P = 5/2^-$$ J P = 5 / 2 - . The binding energies of these states are all below 10 MeV and the root mean square (RMS) are around 1.8 fm, which indicates that these states are likely to be molecular states. These predicted exotic states may provide new ideas for experimental searches and we expect more experimental and theoretical researches to study and understand the fully heavy states in future. |
| first_indexed | 2024-03-12T01:41:12Z |
| format | Article |
| id | doaj.art-20927b07cb374b14982c21a3bb6e4e2e |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-12T01:41:12Z |
| publishDate | 2023-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-20927b07cb374b14982c21a3bb6e4e2e2023-09-10T11:22:56ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-07-0183711410.1140/epjc/s10052-023-11810-6Prediction of charmed-bottom pentaquarks in quark modelYe Yan0Yuheng Wu1Hongxia Huang2Jialun Ping3Xinmei Zhu4Department of Physics, Nanjing Normal UniversityDepartment of Physics, Nanjing Normal UniversityDepartment of Physics, Nanjing Normal UniversityDepartment of Physics, Nanjing Normal UniversityDepartment of Physics, Yangzhou UniversityAbstract Inspired by the fully heavy tetraquark states reported by the LHCb, ATLAS and CMS Collaborations, we perform a systematical investigation of the low-lying fully heavy pentaquark systems composed of charm and bottom quarks (anti-quark) in the chiral quark model. With the help of the channel-coupling, we obtain several fully heavy pentaquark candidates, which are $$cccc\bar{b}$$ c c c c b ¯ and $$bbbb\bar{c}$$ b b b b c ¯ systems with $$J^P = 1/2^-$$ J P = 1 / 2 - and $$3/2^-$$ 3 / 2 - , $$cccb\bar{c}$$ c c c b c ¯ , $$bbbc\bar{b}$$ b b b c b ¯ , $$cccb\bar{b}$$ c c c b b ¯ and $$bbbc\bar{c}$$ b b b c c ¯ systems with $$J^P = 5/2^-$$ J P = 5 / 2 - . The binding energies of these states are all below 10 MeV and the root mean square (RMS) are around 1.8 fm, which indicates that these states are likely to be molecular states. These predicted exotic states may provide new ideas for experimental searches and we expect more experimental and theoretical researches to study and understand the fully heavy states in future.https://doi.org/10.1140/epjc/s10052-023-11810-6 |
| spellingShingle | Ye Yan Yuheng Wu Hongxia Huang Jialun Ping Xinmei Zhu Prediction of charmed-bottom pentaquarks in quark model European Physical Journal C: Particles and Fields |
| title | Prediction of charmed-bottom pentaquarks in quark model |
| title_full | Prediction of charmed-bottom pentaquarks in quark model |
| title_fullStr | Prediction of charmed-bottom pentaquarks in quark model |
| title_full_unstemmed | Prediction of charmed-bottom pentaquarks in quark model |
| title_short | Prediction of charmed-bottom pentaquarks in quark model |
| title_sort | prediction of charmed bottom pentaquarks in quark model |
| url | https://doi.org/10.1140/epjc/s10052-023-11810-6 |
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