Phenomenology of $D_{s1}$ mesons radiative transitions
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909657935642624 |
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| author | Bondar, A. E. Milstein, A. I. |
| author_facet | Bondar, A. E. Milstein, A. I. |
| contents | We discuss radiative transitions $D_{s1}\rightarrow D_sγ$ and $D_{s1}\rightarrow D_s^*γ$ of $p$-wave mesons. Since $D_{s1}$ mesons have no a certain $C$-parity, and the masses of quarks in these mesons differ significantly, then due to the spin-orbit interaction each of $p$-wave mesons with the total angular momentum $J=1$ is a superposition of states with the total spin of quarks $S_{tot}=0$ and $S_{tot}=1$. We explain why the partial width of $D_{s1}(2460)\to D_sγ$ radiative transition is significantly larger than the corresponding value for $D_{s1}(2536)\to D_sγ$. We also predict the corresponding partial widths of $B_{s1}$ and $B_{c1}$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2505_01856 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Phenomenology of $D_{s1}$ mesons radiative transitions Bondar, A. E. Milstein, A. I. High Energy Physics - Phenomenology High Energy Physics - Experiment We discuss radiative transitions $D_{s1}\rightarrow D_sγ$ and $D_{s1}\rightarrow D_s^*γ$ of $p$-wave mesons. Since $D_{s1}$ mesons have no a certain $C$-parity, and the masses of quarks in these mesons differ significantly, then due to the spin-orbit interaction each of $p$-wave mesons with the total angular momentum $J=1$ is a superposition of states with the total spin of quarks $S_{tot}=0$ and $S_{tot}=1$. We explain why the partial width of $D_{s1}(2460)\to D_sγ$ radiative transition is significantly larger than the corresponding value for $D_{s1}(2536)\to D_sγ$. We also predict the corresponding partial widths of $B_{s1}$ and $B_{c1}$. |
| title | Phenomenology of $D_{s1}$ mesons radiative transitions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2505.01856 |