Gluonic tetracharm configuration of X(6900)
Recently, a new hadronic structure at around 6.9 GeV was observed in an LHCb experiment. From its limited yet known decay mode, one could still determine that it contains at least four charm quarks and hence belongs to the category of exotic state. This finding indicates for the first time the tetra...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-06-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321002793 |
| _version_ | 1819097551796699136 |
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| author | Bing-Dong Wan Cong-Feng Qiao |
| author_facet | Bing-Dong Wan Cong-Feng Qiao |
| author_sort | Bing-Dong Wan |
| collection | DOAJ |
| description | Recently, a new hadronic structure at around 6.9 GeV was observed in an LHCb experiment. From its limited yet known decay mode, one could still determine that it contains at least four charm quarks and hence belongs to the category of exotic state. This finding indicates for the first time the tetracharm exotic states and is therefore quite importance. In this letter, we propose a nature hybrid interpretation for the structure of X(6900), i.e. in [3¯c]cc⊗[8c]G⊗[3c]c¯c¯ configuration with JPC=0++, and by using the QCD Sum Rule technique we performed mass spectrum calculation. The results showed that the observed X(6900) could be a gluonic tetracharm state, and some other structures may exist, e.g., one around 7.2 GeV in the tetracharm hybrid configuration and with JPC=0−+. We also predict the tetrabottom hybrid states, leaving for future experiment. |
| first_indexed | 2024-12-22T00:16:54Z |
| format | Article |
| id | doaj.art-bbd40087a5384aadbe1c2163b79c622a |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-22T00:16:54Z |
| publishDate | 2021-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-bbd40087a5384aadbe1c2163b79c622a2022-12-21T18:45:17ZengElsevierPhysics Letters B0370-26932021-06-01817136339Gluonic tetracharm configuration of X(6900)Bing-Dong Wan0Cong-Feng Qiao1School of Physics, University of Chinese Academy of Science, Yuquan Road 19A, Beijing 10049, ChinaSchool of Physics, University of Chinese Academy of Science, Yuquan Road 19A, Beijing 10049, China; CAS Center for Excellence in Particle Physics, Beijing 10049, China; Corresponding author.Recently, a new hadronic structure at around 6.9 GeV was observed in an LHCb experiment. From its limited yet known decay mode, one could still determine that it contains at least four charm quarks and hence belongs to the category of exotic state. This finding indicates for the first time the tetracharm exotic states and is therefore quite importance. In this letter, we propose a nature hybrid interpretation for the structure of X(6900), i.e. in [3¯c]cc⊗[8c]G⊗[3c]c¯c¯ configuration with JPC=0++, and by using the QCD Sum Rule technique we performed mass spectrum calculation. The results showed that the observed X(6900) could be a gluonic tetracharm state, and some other structures may exist, e.g., one around 7.2 GeV in the tetracharm hybrid configuration and with JPC=0−+. We also predict the tetrabottom hybrid states, leaving for future experiment.http://www.sciencedirect.com/science/article/pii/S0370269321002793 |
| spellingShingle | Bing-Dong Wan Cong-Feng Qiao Gluonic tetracharm configuration of X(6900) Physics Letters B |
| title | Gluonic tetracharm configuration of X(6900) |
| title_full | Gluonic tetracharm configuration of X(6900) |
| title_fullStr | Gluonic tetracharm configuration of X(6900) |
| title_full_unstemmed | Gluonic tetracharm configuration of X(6900) |
| title_short | Gluonic tetracharm configuration of X(6900) |
| title_sort | gluonic tetracharm configuration of x 6900 |
| url | http://www.sciencedirect.com/science/article/pii/S0370269321002793 |
| work_keys_str_mv | AT bingdongwan gluonictetracharmconfigurationofx6900 AT congfengqiao gluonictetracharmconfigurationofx6900 |