| Process | Condition | b | t | QCD | tt-bar | Theoretical Reference | Experimental Reference | Run I Mass Limits (TeV) @ 95% C.L. | Run II Mass Reach (TeV) |
| Z' ® tt | M(Z') ~ 3 TeV | XX | 1 | Bonini, Chivikula, Cohen, Lane, Popovic, Simmons, Su | None | 0.92 (for narrow Z'), 5s | |||
| Z' ® bb | M(Z') ~ 3 TeV | XX | 1 | Bonini, Chivikula, Cohen, Lane, Popovic, Simmons, Su | R.Harris, Aspen 98 | ||||
| V80 corr. to t | 15% increase in c.s. | X | None | ||||||
| V80 ® tt | XX | 1 | C.T.Hill, K.Lane, S.J.Parke | None | 0.97-1.11 (same G/M), 5s | ||||
| V80 ® bb | XX | 1 | C.T.Hill, K.Lane, S.J.Parke | R.Harris, Aspen 98 | 0.54-0.63 (for G/M=0.7-0.3) | 0.77-0.95 (same G/M), 5s | |||
| tbpt± ® ttbb | M(pt) > M(t) | XX | 1 | None | |||||
| bbhb0 ® bbbb | M(pt) > M(t) | XXXX | 1 | C.Balazs, J.Diaz-Cruz, H.-J.He, T.Tait, C.-P.Yuan | None | ||||
| bc ® pT+ ® bt | M(pt) > M(t) | X | X | 1 | Hong-Jian He and C.P. Yuan, hep-ph/9810367 | None | |||