1
A common feature of the observed decay modes is threshold peaking in baryon pair invariant mass.
2
The first method uses the dijet invariant mass distribution while the second more sensitive method uses matrix-element calculations.
3
The search exploits the shape of the tb invariant mass distribution compared to the expected standard model backgrounds.
4
The invariant mass spectrum of the candidate top-quark pairs is examined for local excesses above the background expectation.
5
The data cover the resonance region, up to an invariant mass of W≈1.9 GeV.
6
No significant structure is observed in the dimuon invariant mass distribution, in contrast with a previous result from the HyperCP experiment.
7
The signal would be identified as a peak on top of the dijet invariant mass spectrum of the remaining background events.
8
Events with a lepton, missing transverse momentum, and two jets are selected and the invariant mass of the corresponding final state is reconstructed.
9
Anywhere on that shell, a particle will have different total energy and different speed, but the mass, the invariant mass, will be the same.
10
In either channel, no event with a lepton-jet invariant mass of 3.5 TeV or more is observed, consistent with the expected background.