Abstract
Using the exclusive decay , we report the most precise single measurement of the lifetime. The data sample corresponds to an integrated luminosity of approximately collected with the D0 detector at the Fermilab Tevatron Collider in 2002–2004. We reconstruct 337 signal candidates, from which we extract the lifetime, . We also report a measurement for the lifetime of the meson using the exclusive decay . We reconstruct 1370 signal candidates, obtaining , and the ratio of lifetimes, .
- Received 22 September 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.042001
©2005 American Physical Society