Physicists verify existence of tiny 'bottom' quark
| Stanford, Calif.
Physicists took another small step in their quest to understand the structure of matter when the existence of one of its tiniest building blocks was confirmed by a team of Stanford researchers.
Scientists at the Stanford Linear Accelerator Center confirmed the existence of the fifth, or ''bottom,'' quark and found experimental evidence suggesting evidence of a sixth quark dubbed ''top.'' Observers say that the theoretically predicted top quark may be found sometime next year at particle accelerators of the European Center for Nuclear Research near Geneva.