Selected decays of $B_{s}$ meson in covariant confined quark model
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866915681764638720 |
|---|---|
| author | Dubnička, Stanislav Dubničková, Anna Zuzana Ivanov, Mikhail A. Liptaj, Andrej |
| author_facet | Dubnička, Stanislav Dubničková, Anna Zuzana Ivanov, Mikhail A. Liptaj, Andrej |
| contents | We present a study of various $B_{s}$ meson decays, including hadronic and semileptonic final states with different spins and diagram topologies. The covariant confined quark model is employed to describe hadronic effects, and our analysis serves as a broad test of the current understanding of the underlying dynamics within the Standard Model. The level of agreement with experimental data varies across channels: it is good for the semileptonic decays $B_{s}^{0}\to D_{s}^{-}μ^{+}ν_μ$ and $B_{s}^{0}\to K^{-}μ^{+}ν_μ$; acceptable for the hadronic modes $B_{s}^{0}\to D_{s}^{-}D^{+}$ and $B_{s}^{0}\to K^{-}π^{+}$; marginal for $B_{s}^{0}\to D_{s}^{-}π^{+}$, $B_{s}^{0}\to D_{s}^{-}ρ^{+}$, and $B_{s}^{0}\toϕ\,J/ψ$; and significantly discrepant for $B_{s}^{0}\toϕ\,\overline{D^{0}}$ and $B_{s}^{0}\toϕ\,η_{c}$. We argue that the observed inconsistencies may arise from the breakdown of naive factorization and unaccounted long-distance effects. In particular, the channels $B_{s}^{0}\to D_{s}^{-}π^{+}$ and $B_{s}^{0}\to D_{s}^{-}ρ^{+}$ are theoretically among the cleanest nonleptonic decays, yet they exhibit persistent discrepancies also reported by other theoretical groups. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_15321 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Selected decays of $B_{s}$ meson in covariant confined quark model Dubnička, Stanislav Dubničková, Anna Zuzana Ivanov, Mikhail A. Liptaj, Andrej High Energy Physics - Phenomenology We present a study of various $B_{s}$ meson decays, including hadronic and semileptonic final states with different spins and diagram topologies. The covariant confined quark model is employed to describe hadronic effects, and our analysis serves as a broad test of the current understanding of the underlying dynamics within the Standard Model. The level of agreement with experimental data varies across channels: it is good for the semileptonic decays $B_{s}^{0}\to D_{s}^{-}μ^{+}ν_μ$ and $B_{s}^{0}\to K^{-}μ^{+}ν_μ$; acceptable for the hadronic modes $B_{s}^{0}\to D_{s}^{-}D^{+}$ and $B_{s}^{0}\to K^{-}π^{+}$; marginal for $B_{s}^{0}\to D_{s}^{-}π^{+}$, $B_{s}^{0}\to D_{s}^{-}ρ^{+}$, and $B_{s}^{0}\toϕ\,J/ψ$; and significantly discrepant for $B_{s}^{0}\toϕ\,\overline{D^{0}}$ and $B_{s}^{0}\toϕ\,η_{c}$. We argue that the observed inconsistencies may arise from the breakdown of naive factorization and unaccounted long-distance effects. In particular, the channels $B_{s}^{0}\to D_{s}^{-}π^{+}$ and $B_{s}^{0}\to D_{s}^{-}ρ^{+}$ are theoretically among the cleanest nonleptonic decays, yet they exhibit persistent discrepancies also reported by other theoretical groups. |
| title | Selected decays of $B_{s}$ meson in covariant confined quark model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.15321 |