$X(3960)$, $X_0(4140)$, and other compact $cs\bar{c}\bar{s}$ states
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866913467554856960 |
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| author | Li, Shi-Yuan Liu, Yan-Rui Man, Zi-Long Si, Zong-Guo Wu, Jing |
| author_facet | Li, Shi-Yuan Liu, Yan-Rui Man, Zi-Long Si, Zong-Guo Wu, Jing |
| contents | We study the spectrum and rearrangement decays of S-wave $cs\bar{c}\bar{s}$ tetraquark states in a simplified quark model. The masses and widths are estimated by assuming that the $X(4140)$ is the lower $1^{++}$ $cs\bar{c}\bar{s}$ tetraquark. Comparing our results with experimental measurements, we find that the recently observed $X(3960)$ by LHCb can be assigned as the lowest $0^{++}$ $cs\bar{c}\bar{s}$ tetraquark state and the $X_0(4140)$ could be the second lowest $0^{++}$ $cs\bar{c}\bar{s}$ tetraquark. Predictions of ratios between partial widths for the involved tetraquarks are given. We call for searches for more $cs\bar{c}\bar{s}$ tetraquarks with $J^{PC}=1^{+-}$, $0^{++}$, and $2^{++}$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2308_06768 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | $X(3960)$, $X_0(4140)$, and other compact $cs\bar{c}\bar{s}$ states Li, Shi-Yuan Liu, Yan-Rui Man, Zi-Long Si, Zong-Guo Wu, Jing High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory We study the spectrum and rearrangement decays of S-wave $cs\bar{c}\bar{s}$ tetraquark states in a simplified quark model. The masses and widths are estimated by assuming that the $X(4140)$ is the lower $1^{++}$ $cs\bar{c}\bar{s}$ tetraquark. Comparing our results with experimental measurements, we find that the recently observed $X(3960)$ by LHCb can be assigned as the lowest $0^{++}$ $cs\bar{c}\bar{s}$ tetraquark state and the $X_0(4140)$ could be the second lowest $0^{++}$ $cs\bar{c}\bar{s}$ tetraquark. Predictions of ratios between partial widths for the involved tetraquarks are given. We call for searches for more $cs\bar{c}\bar{s}$ tetraquarks with $J^{PC}=1^{+-}$, $0^{++}$, and $2^{++}$. |
| title | $X(3960)$, $X_0(4140)$, and other compact $cs\bar{c}\bar{s}$ states |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2308.06768 |