DETECTING VERY MASSIVE TOP QUARKS AT THE FERMILAB TEVATRON

We consider the dilepton-dijet signal from very heavy tt» pair production with semileptonic tb decays via real W bosons in the standard model. We evaluate the principal backgrounds, arising from the direct production of W+W- plus two jets or Z plus two jets (with Z»»+), and show that they can be cleanly separated by suitable cuts. We demonstrate how the top-quark mass mt can be estimated via dynamical distributions or event reconstructions or event rate and calculate the statistical correlations between different mass estimators. © 1990 The American Physical Society.