Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rules
Abstract In this work, we study the $$D\bar{D}$$ D D ¯ , DD, $$D\bar{D}_s$$ D D ¯ s , $$DD_s$$ D D s , $$D_s\bar{D}_s$$ D s D ¯ s and $$D_sD_s$$ D s D s tetraquark molecular states with the $$J^{PC}=0^{++}$$ J PC = 0 + + via the QCD sum rules. The prediction $$M_{D_s\bar{D}_s} = 3.98\pm 0.10\, \text...
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| Format: | Article |
| Language: | English |
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Springer
2022-12-01
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| Series: | AAPPS Bulletin |
| Online Access: | https://doi.org/10.1007/s43673-022-00070-3 |
| _version_ | 1811203579463073792 |
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| author | Qi Xin Zhi-Gang Wang Xiao-Song Yang |
| author_facet | Qi Xin Zhi-Gang Wang Xiao-Song Yang |
| author_sort | Qi Xin |
| collection | DOAJ |
| description | Abstract In this work, we study the $$D\bar{D}$$ D D ¯ , DD, $$D\bar{D}_s$$ D D ¯ s , $$DD_s$$ D D s , $$D_s\bar{D}_s$$ D s D ¯ s and $$D_sD_s$$ D s D s tetraquark molecular states with the $$J^{PC}=0^{++}$$ J PC = 0 + + via the QCD sum rules. The prediction $$M_{D_s\bar{D}_s} = 3.98\pm 0.10\, \text {GeV}$$ M D s D ¯ s = 3.98 ± 0.10 GeV is in very good agreement with the experimental value $$M_{X(3960)} = 3956 \pm 5\pm 10 \,\text {MeV}$$ M X ( 3960 ) = 3956 ± 5 ± 10 MeV from the LHCb collaboration and supports assigning the X(3960) as the $$D_s^+D_s^-$$ D s + D s - molecular state with the $$J^{PC}=0^{++}$$ J PC = 0 + + . We take account of our previous works on the four-quark states consisting of two color-neutral clusters and acquire the mass spectrum of the ground state hidden-charm and doubly-charm tetraquark molecular states. |
| first_indexed | 2024-04-12T02:57:42Z |
| format | Article |
| id | doaj.art-d8d13048e3c74b418933c33198622df5 |
| institution | Directory Open Access Journal |
| issn | 2309-4710 |
| language | English |
| last_indexed | 2024-04-12T02:57:42Z |
| publishDate | 2022-12-01 |
| publisher | Springer |
| record_format | Article |
| series | AAPPS Bulletin |
| spelling | doaj.art-d8d13048e3c74b418933c33198622df52022-12-22T03:50:46ZengSpringerAAPPS Bulletin2309-47102022-12-013211710.1007/s43673-022-00070-3Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rulesQi Xin0Zhi-Gang Wang1Xiao-Song Yang2Department of Physics, North China Electric Power UniversityDepartment of Physics, North China Electric Power UniversityDepartment of Physics, North China Electric Power UniversityAbstract In this work, we study the $$D\bar{D}$$ D D ¯ , DD, $$D\bar{D}_s$$ D D ¯ s , $$DD_s$$ D D s , $$D_s\bar{D}_s$$ D s D ¯ s and $$D_sD_s$$ D s D s tetraquark molecular states with the $$J^{PC}=0^{++}$$ J PC = 0 + + via the QCD sum rules. The prediction $$M_{D_s\bar{D}_s} = 3.98\pm 0.10\, \text {GeV}$$ M D s D ¯ s = 3.98 ± 0.10 GeV is in very good agreement with the experimental value $$M_{X(3960)} = 3956 \pm 5\pm 10 \,\text {MeV}$$ M X ( 3960 ) = 3956 ± 5 ± 10 MeV from the LHCb collaboration and supports assigning the X(3960) as the $$D_s^+D_s^-$$ D s + D s - molecular state with the $$J^{PC}=0^{++}$$ J PC = 0 + + . We take account of our previous works on the four-quark states consisting of two color-neutral clusters and acquire the mass spectrum of the ground state hidden-charm and doubly-charm tetraquark molecular states.https://doi.org/10.1007/s43673-022-00070-3 |
| spellingShingle | Qi Xin Zhi-Gang Wang Xiao-Song Yang Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rules AAPPS Bulletin |
| title | Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rules |
| title_full | Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rules |
| title_fullStr | Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rules |
| title_full_unstemmed | Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rules |
| title_short | Analysis of the X(3960) and related tetraquark molecular states via the QCD sum rules |
| title_sort | analysis of the x 3960 and related tetraquark molecular states via the qcd sum rules |
| url | https://doi.org/10.1007/s43673-022-00070-3 |
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