Measurement of the doubly Cabibbo suppressed decay $D^0 \to K^+π^-$ and a search for charm mixing
| dc.creator | FOCUS Collaboration | |
| dc.creator | Link, J. M. | |
| dc.date | 2004-12-12 | |
| dc.date | 2005-05-10 | |
| dc.date.accessioned | 2026-07-07T11:57:59Z | |
| dc.date.available | 2026-07-07T11:57:59Z | |
| dc.description | We present an analysis of the decay $D^0 \to K^+π^-$ based on FOCUS data. From a sample of 234 signal events, we find a branching ratio of $\frac{Γ(D^0 \to K^+π^-)}{Γ(D^0 \to K^-π^+)} = (0.429^{+0.063}_{-0.061}\pm 0.027)%$ under the assumptions of no mixing and no CP violation. Allowing for CP violation, we find a branching ratio of $(0.429 \pm 0.063 \pm 0.028)%$ and a \textit{CP} asymmetry of $0.18 \pm 0.14 \pm 0.04$. The branching ratio for the case of mixing with no CP violation is $(0.381^{+0.167}_{-0.163} \pm 0.092)%$. We also present limits on charm mixing. | |
| dc.description | As accepted by Physics Letters B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0412034 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0412034 | |
| dc.identifier | Phys.Lett.B618:23-33,2005 | |
| dc.identifier | doi:10.1016/j.physletb.2005.05.020 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206079 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the doubly Cabibbo suppressed decay $D^0 \to K^+π^-$ and a search for charm mixing | |
| dc.type | text |