$B_c, B^{*}_c, B_s, B^{*}_s, D_s$ and $D^{*}_s$ mass shift in a nuclear medium
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866910541072564224 |
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| author | Beres, S. L. P. G. |
| author_facet | Beres, S. L. P. G. |
| contents | For the first time, we estimate the in-medium mass shift of the two-flavored heavy mesons $B_c, B_c^*, B_s, B_s^*, D_s$ and $D_s^*$ in symmetric nuclear matter. The estimates are made by evaluating the lowest order one-loop self-energies. The enhanced excitations of intermediate state heavy-light quark mesons in symmetric nuclear matter are the origin of their negative mass shift. Our results show that the magnitude of the mass shift for the $B_c$ meson ($\bar{b} c$ or $b \bar{c}$) is larger than those of the $η_c (\bar{c} c)$ and $η_b (\bar{b} b)$, different from a naive expectation that it would be in-between of them. While, that of the $B_c^*$ shows the in-between of the $J/ψ$ and $Υ$. We observe that the lighter vector meson excitation in each meson self-energy gives a dominant contribution for the corresponding meson mass shift, $B_c, B_s,$ and $D_s$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_03377 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | $B_c, B^{*}_c, B_s, B^{*}_s, D_s$ and $D^{*}_s$ mass shift in a nuclear medium Beres, S. L. P. G. High Energy Physics - Phenomenology Nuclear Theory Computational Physics For the first time, we estimate the in-medium mass shift of the two-flavored heavy mesons $B_c, B_c^*, B_s, B_s^*, D_s$ and $D_s^*$ in symmetric nuclear matter. The estimates are made by evaluating the lowest order one-loop self-energies. The enhanced excitations of intermediate state heavy-light quark mesons in symmetric nuclear matter are the origin of their negative mass shift. Our results show that the magnitude of the mass shift for the $B_c$ meson ($\bar{b} c$ or $b \bar{c}$) is larger than those of the $η_c (\bar{c} c)$ and $η_b (\bar{b} b)$, different from a naive expectation that it would be in-between of them. While, that of the $B_c^*$ shows the in-between of the $J/ψ$ and $Υ$. We observe that the lighter vector meson excitation in each meson self-energy gives a dominant contribution for the corresponding meson mass shift, $B_c, B_s,$ and $D_s$. |
| title | $B_c, B^{*}_c, B_s, B^{*}_s, D_s$ and $D^{*}_s$ mass shift in a nuclear medium |
| topic | High Energy Physics - Phenomenology Nuclear Theory Computational Physics |
| url | https://arxiv.org/abs/2407.03377 |