Evidence for $D^0 - \bar{D}^0$ Mixing
| dc.creator | Belle Collaboration | |
| dc.creator | Staric, M. | |
| dc.date | 2007-03-23 | |
| dc.date | 2007-04-01 | |
| dc.date.accessioned | 2026-07-07T11:58:22Z | |
| dc.date.available | 2026-07-07T11:58:22Z | |
| dc.description | We observe evidence for $D^0 - \bar{D}^0$ mixing by measuring the difference in apparent lifetime when a $D^0$ meson decays to the CP eigenstates $K^+K^-$ and $π^+π^-$, and when it decays to the final state $K^-π^+$. We find $y_{CP}=(1.31\pm 0.32({\rm stat.})\pm 0.25({\rm syst.}))%$, 3.2 standard deviations from zero. We also search for a CP asymmetry between $D^0$ and $\bar{D}^0$ decays; no evidence for CP violation is found. These results are based on 540 fb$^{-1}$ of data recorded by the Belle detector at the KEKB $e^+e^-$ collider. | |
| dc.description | 6 pages, 2 figures, submitted to PRL | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0703036 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0703036 | |
| dc.identifier | Phys.Rev.Lett.98:211803,2007 | |
| dc.identifier | doi:10.1103/PhysRevLett.98.211803 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206202 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Evidence for $D^0 - \bar{D}^0$ Mixing | |
| dc.type | text |