Abstract
Using data from proton-antiproton collisions at recorded by the CDF II detector at the Fermilab Tevatron, evidence for the excited resonance state is presented in its decay followed by the and decays. The analysis is based on a data sample corresponding to an integrated luminosity of collected by an online event selection based on charged-particle tracks displaced from the proton-antiproton interaction point. The significance of the observed signal is . The mass of the observed state is found to be in agreement with similar findings in proton-proton collision experiments.
- Received 12 August 2013
DOI:https://doi.org/10.1103/PhysRevD.88.071101
© 2013 American Physical Society