P-wave fully charm and fully bottom tetraquark states
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866913343042748416 |
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| author | Chen, Zhi-Zhong Chen, Xu-Liang Yang, Peng-Fei Chen, Wei |
| author_facet | Chen, Zhi-Zhong Chen, Xu-Liang Yang, Peng-Fei Chen, Wei |
| contents | We have studied the mass spectra of the P-wave fully charm and fully bottom tetraquark states in the framework of QCD sum rules. We construct the interpolating currents by inserting the covariant derivative operator $\overset{ \leftrightarrow } { \mathcal D }_{ μ}$ between the S-wave diquark and antidiquark fields. The excitation structures show that the pure $λ$-mode excited P-wave fully heavy tetraquarks exist for the quantum numbers $J^{PC}=1^{--}, 1^{-+}, 2^{--}, 2^{-+}$ and $3^{--}$, while it is difficult to separate the $λ$-mode and $ρ$-mode excitations in the $0^{-+}$ channel. Within three Lorentz indices, there is no pure $λ$-mode excited P-wave fully charm/bottom tetraquark operators with $J^{PC}=0^{--}$ and $3^{-+}$. Our results support that the recent observed $X(6900)$ and $X(7200)$ resonances could be interpreted as the P-wave fully charm $cc \bar c \bar c$ tetraquark states with $J^{PC}=1^{-+}$ and $2^{-+}$, respectively. Some P-wave fully bottom $bb\bar b\bar b$ tetraquark states are predicted to be lower than the di-$η_b(1S)$ and di-$Υ(1S)$ mass thresholds. Hopefully our calculations will be useful for identifying the nature of new exotic tetraquark states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_03117 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | P-wave fully charm and fully bottom tetraquark states Chen, Zhi-Zhong Chen, Xu-Liang Yang, Peng-Fei Chen, Wei High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice We have studied the mass spectra of the P-wave fully charm and fully bottom tetraquark states in the framework of QCD sum rules. We construct the interpolating currents by inserting the covariant derivative operator $\overset{ \leftrightarrow } { \mathcal D }_{ μ}$ between the S-wave diquark and antidiquark fields. The excitation structures show that the pure $λ$-mode excited P-wave fully heavy tetraquarks exist for the quantum numbers $J^{PC}=1^{--}, 1^{-+}, 2^{--}, 2^{-+}$ and $3^{--}$, while it is difficult to separate the $λ$-mode and $ρ$-mode excitations in the $0^{-+}$ channel. Within three Lorentz indices, there is no pure $λ$-mode excited P-wave fully charm/bottom tetraquark operators with $J^{PC}=0^{--}$ and $3^{-+}$. Our results support that the recent observed $X(6900)$ and $X(7200)$ resonances could be interpreted as the P-wave fully charm $cc \bar c \bar c$ tetraquark states with $J^{PC}=1^{-+}$ and $2^{-+}$, respectively. Some P-wave fully bottom $bb\bar b\bar b$ tetraquark states are predicted to be lower than the di-$η_b(1S)$ and di-$Υ(1S)$ mass thresholds. Hopefully our calculations will be useful for identifying the nature of new exotic tetraquark states. |
| title | P-wave fully charm and fully bottom tetraquark states |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2402.03117 |