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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2401.00411 |
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| _version_ | 1866912317811195904 |
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| author | Xu, Hongge Yu, Ning Zhang, Zuman |
| author_facet | Xu, Hongge Yu, Ning Zhang, Zuman |
| contents | We fit the invariant mass distribution of ${X(3872)}\rightarrow{J}/ψπ^+π^-$ from LHCb using the propagator for S-wave near-threshold states in effective field theory. In this way, we can directly determine the $Z$ which measures the projection of the bound state on the compact state in ${X(3872)}$. Consequently, the structure of ${X(3872)}$ can be elucidated. Moreover, the fitting result also can describe well the data for ${X(3872)}\rightarrow{D}^{0}\overline{D}^{0*}$ from Belle experiment, which demonstrate the reliability of our fitting. The fitting indicates that $Z$ is a non-vanishing value within error, which supports that $X(3872)$ has a compact short-distant core. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_00411 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Study the structure of X(3872) from its lineshape Xu, Hongge Yu, Ning Zhang, Zuman High Energy Physics - Phenomenology High Energy Physics - Experiment We fit the invariant mass distribution of ${X(3872)}\rightarrow{J}/ψπ^+π^-$ from LHCb using the propagator for S-wave near-threshold states in effective field theory. In this way, we can directly determine the $Z$ which measures the projection of the bound state on the compact state in ${X(3872)}$. Consequently, the structure of ${X(3872)}$ can be elucidated. Moreover, the fitting result also can describe well the data for ${X(3872)}\rightarrow{D}^{0}\overline{D}^{0*}$ from Belle experiment, which demonstrate the reliability of our fitting. The fitting indicates that $Z$ is a non-vanishing value within error, which supports that $X(3872)$ has a compact short-distant core. |
| title | Study the structure of X(3872) from its lineshape |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2401.00411 |