Word: quarks
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Dates: during 1980-1989
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...team of scientists in Geneva, headed by Professor of Physics Carlo Rubbia, has found evidence of a sixth kind of quark, one of the most sought after discoveries in modern physics...
...quark's mass appears to he somewhere between 30 and 60 electron volts. The masses of atomic particles are given in energy equivalents...
...Because quarks cannot normally be pried apart for direct observation, the production of the sixth quark required high energy, collisions barely within the reach of the machine in Switzerland...
After improvements to the performance of the accelerator, a new, 15-month series of tests are scheduled to begin this fall, which Rubbia said he expects will lead to further support of the quark finding...
...presence of the quark could not be confirmed, the most popular theories in modern physics would "have had to be redone," said Chairman of Physics Department Richard Wilson...