Abstract
We report the first evidence for a fully reconstructed decay mode of the meson in the channel , with . The analysis is based on an integrated luminosity of in collisions at 1.96 TeV center of mass energy collected by the Collider Detector at Fermilab. We observe signal events with a background of events, and a fit to the mass spectrum yields a mass of . The probability of a peak of this magnitude occurring by random fluctuation in the search region is estimated as 0.012%.
- Received 23 May 2005
DOI:https://doi.org/10.1103/PhysRevLett.96.082002
©2006 American Physical Society