Abstract
Using the full CDF Run II data sample, we report evidence for a new resonance, which we refer to as , found simultaneously in the and mass distributions with a significance of 4.4 standard deviations. We further report the first study of resonances consistent with orbitally excited mesons and an updated measurement of the properties of orbitally excited and mesons. We measure the masses and widths of all states, as well as the relative production rates of the , , and states and the branching fraction of the state to either and . Furthermore, we measure the production rates of the orbitally excited states relative to the ground state. The masses of the new resonances are for the neutral state and for the charged state, assuming that the resonance decays into final states. The properties of the orbitally excited and the new states are compatible with isospin symmetry.
- Received 23 September 2013
DOI:https://doi.org/10.1103/PhysRevD.90.012013
© 2014 American Physical Society