Analysis of the resonance X(4630) at non-zero temperature
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arXiv
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866909294167851008 |
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| author | Bozkır, G. |
| author_facet | Bozkır, G. |
| contents | We calculate the spectroscopic parameters of resonance $X(4630)$ observed in the process $B^{+}\rightarrow J/ΨϕK^{+}$ by at the LHCb experiments at CERN by means of thermal QCD sum rule method at non-zero temperature. The exotic vector $X(4630)$ is assigned as the diquark-antidiquark state $[cs][\overline{cs}]$ with spin-parity $J^{PC}=1^{-+}$. Employing the two-point QCD sum rule approach up to the sixth order of the operator dimension by including non-perturbative contribution, we calculate the mass and decay constant of $X(4630)$ at $T\neq0$. The numerical analyses demonstrate that the values of the mass and decay constant of $X(4630)$ near the deconfinement temperature decrease up to $9.8\%$ and $60\%$ of their vacuum values. At $T\rightarrow0$, the obtained results for the mass $m_{X(4630)}=(4649\pm40)$ MeV and decay constant $λ_{X(4630)}=(10.07\pm0.8)\times10^{-3} $ MeV are in excellent agreement with the results reported by LHCb experiments and other theoretical predictions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_13093 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Analysis of the resonance X(4630) at non-zero temperature Bozkır, G. High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice We calculate the spectroscopic parameters of resonance $X(4630)$ observed in the process $B^{+}\rightarrow J/ΨϕK^{+}$ by at the LHCb experiments at CERN by means of thermal QCD sum rule method at non-zero temperature. The exotic vector $X(4630)$ is assigned as the diquark-antidiquark state $[cs][\overline{cs}]$ with spin-parity $J^{PC}=1^{-+}$. Employing the two-point QCD sum rule approach up to the sixth order of the operator dimension by including non-perturbative contribution, we calculate the mass and decay constant of $X(4630)$ at $T\neq0$. The numerical analyses demonstrate that the values of the mass and decay constant of $X(4630)$ near the deconfinement temperature decrease up to $9.8\%$ and $60\%$ of their vacuum values. At $T\rightarrow0$, the obtained results for the mass $m_{X(4630)}=(4649\pm40)$ MeV and decay constant $λ_{X(4630)}=(10.07\pm0.8)\times10^{-3} $ MeV are in excellent agreement with the results reported by LHCb experiments and other theoretical predictions. |
| title | Analysis of the resonance X(4630) at non-zero temperature |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2408.13093 |