Branching Ratios of $B \to D_s K$ Decays in Perturbative QCD Approach
| dc.creator | Lu, Cai-Dian | |
| dc.creator | Ukai, Kazumasa | |
| dc.date | 2002-10-15 | |
| dc.date.accessioned | 2026-07-07T12:26:24Z | |
| dc.date.available | 2026-07-07T12:26:24Z | |
| dc.description | The rare decays $B^0 \to D_s^- K^+$ and $B^+ \to D_s^+ \bar{K}^0$ can occur only via annihilation type diagrams in the standard model. We calculate these decays in perturbative QCD approach. We found that the calculated branching ratio of $B^0 \to D_s^- K^+$ agreed with the data which had been observed in the KEK and SLAC $B$ factories. While the decay $B^+ \to D_s^+ \bar{K}^0$ has a very small branching ratio at ${\cal O}(10^{-8})$, due to the suppression from CKM matrix elements $|V_{ub}^* V_{cd}|$. | |
| dc.description | 18 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0210206 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0210206 | |
| dc.identifier | Eur.Phys.J.C28:305-312,2003 | |
| dc.identifier | doi:10.1140/epjc/s2003-01150-4 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214869 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Branching Ratios of $B \to D_s K$ Decays in Perturbative QCD Approach | |
| dc.type | text |