A Measurement of Lifetime Difference in $D^0$ Meson Decays
| dc.creator | Belle Collaboration | |
| dc.creator | Abe, K. | |
| dc.date | 2001-11-08 | |
| dc.date | 2002-03-15 | |
| dc.date.accessioned | 2026-07-07T12:01:40Z | |
| dc.date.available | 2026-07-07T12:01:40Z | |
| dc.description | We report a measurement of the $D^0$-$\bar{D}{}^0$ mixing parameter $y_{CP}$ using 23.4 fb$^{-1}$ of data collected near the $Υ$(4S) resonance with the Belle detector at KEKB. $y_{CP}$ is measured from the lifetime difference of $D^0$ mesons decaying into the $K^-π^+$ state and the CP even eigenstate $K^-K^+$. We find $y_{CP}=(-0.5\pm 1.0{}^{+0.7}_{-0.8})\times10^{-2}$, where the first error is statistical and the second systematic, corresponding to a 95% confidence interval $-0.030 < y_{CP} < 0.020$. | |
| dc.description | 10 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0111026 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0111026 | |
| dc.identifier | Phys.Rev.Lett.88:162001,2002 | |
| dc.identifier | doi:10.1103/PhysRevLett.88.162001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207174 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of Lifetime Difference in $D^0$ Meson Decays | |
| dc.type | text |