Abstract
We report a study of the decays , which involve the creation of a or quark pair in addition to a decay. The data sample consists of of collisions at collected by the CDF detector at the Fermilab Tevatron collider during 1992–1995. We measure the branching fractions to be and . Evidence is seen for contributions from , , , and .
- Received 31 July 2001
DOI:https://doi.org/10.1103/PhysRevLett.88.071801
©2002 American Physical Society