Abstract
We have observed bottom-charm mesons via the decay mode in 1.8 TeV collisions using the CDF detector at the Fermilab Tevatron. A fit of background and signal contributions to the mass distribution yielded events from mesons. A fit to the same distribution with background alone was rejected at the level of 4.8 standard deviations. We measured the mass to be and the lifetime to be . Our measured yield (production cross section times branching ratio) for relative to that for is .
- Received 28 May 1998
DOI:https://doi.org/10.1103/PhysRevLett.81.2432
©1998 American Physical Society