A search for narrow resonances in e+e- annihilation at c.m. energies between 29.90 and 31.46 GeV provides no evidence for the existence of such states. The 90% confidence upper limit on the integrated resonance cross section is 38 nb MeV, significantly below the value expected for the lowest (t,t̄) bound state.
ASJC Scopus subject areas
- Nuclear and High Energy Physics