High-energy collisions with final states that include leptons (electrons, muons or taus) have played major roles in the history of physics. Several particles – such as J/ψ, W, and Z – as well as productions of pairs of Top quarks were discovered in…
Read the paper: BPH-11-002
The observed numbers of events in both decay modes are consistent with those expected in the Standard Model.
Upper limits on the branching fraction have been determined at 90% and 95% confidence levels (CL).
The Standard…