The Top Quark
Completing the Third Generation.
No one could doubt that there would be a sixth quark, the top or t, but it was equally certain that initially no one knew where it would be found. With the b quark near 5 GeV, 15 GeV or so seemed reasonable for the mass of the top quark. Every new accelerator that came on line had the potential to make the discovery and every one of them came up empty handed. Particularly disappointing were the cases of TRISTAN, an e+e– collider at KEK, which reached c.m. energy of 61.4 GeV and set a lower bound of 30.2 GeV and the SpS collider at CERN, which found the W and Z. Even SLC and LEP searched to no ...