First Observation of the All-Hadronic Decay of tt¯ Pairs
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We present the first observation of the all hadronic decay of tt― pairs. The analysis is performed using 109 pb−1 of pp― collisions at s = 1.8 TeV collected with the Collider Detector at Fermilab. We observe an excess of events with five or more jets, including one or two b jets, relative to background expectations. Based on this excess we evaluate the production cross section to be in agreement with previous results. We measure the top mass to be 186±10±12 GeV/c2. © 1997 The American Physical Society.
author list (cited authors)
Abe, F., Akimoto, H., Akopian, A., Albrow, M. G., Amendolia, S. R., Amidei, D., ... Zucchelli, S.