Quarks were introduced as parts of an ordering scheme for hadrons, and there was little evidence for their physical existence untildeep inelastic scattering experiments atthe Stanford Linear Accelerator Center in 1968. ... The top quark, first observed at Fermilab in 1995, was the last to be d...
Bottom quarks, also called beauty quarks in older quantum physics literature, were proposed to theoretically exist in 1975 by Makoto Kobayashi and...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homewor...
Of the rest, about 25 percent appears to be in the form of another mysterious component, dark matter; while only about 5 percent comprises ordinary matter, those quarks, protons, neutrons and electrons that we and the galaxies are made of. "The hypothesis of dark energy is extremely ...