New theory highlights on $B_c$ decays
| Autor: | Losacco, Nicola |
|---|---|
| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We present recent results in semileptonic and non-leptonic exclusive $B_c$ decays to charmonium states both in $S$-wave, $J/\psi$ and $\eta_c$, and in $P$-wave, $\chi_{cJ}$ and $h_c$. The analysis, based on the heavy quark spin symmetry (HQSS), produces relations among form factors that parametrize the hadronic matrix elements in the amplitudes of the decays. These relations are helpful to control the hadronic uncertainty affecting these processes. Furthermore, $B_c$ decays allow us to get hints on the structure of states like $\chi_{c1}(3872)$, whose exotic or ordinary charmonium nature is debated. Comment: 6 pages, 6 figures, 1 table, Talk given at IFAE 2023 (Incontri di Fisica delle Alte Energie 2023), Catania, Italy, 12-14 Apr 2023 |
| Databáze: | arXiv |
| Externí odkaz: |
|