Physicists plan quark conference

At one time, scientists thought atoms were the smallest of nature's building blocks. It has been only in the past century that physicists realized that atoms are made up of neutrons, protons and electrons. In the 1960s and 1970s, scientists discovered signs of internal structure within protons and neutrons, suggesting that these subatomic particles are composed of quarks and the gluons that bind them together.

Quarks come in six flavors: up, down, strange, charmed, top and bottom. A proton consists of two up quarks and one down quark.

The strong nuclear force carried by the gluons, says Smith, is what holds quarks together to form protons.

The meeting, the 13th Annual Workshop on Deep Inelastic Scattering, is being held in the United States for only the second time. New experimental and theoretical data will be presented and discussed.

In conjunction with the meeting, Jack Liebeck, an acclaimed violinist, will present a free public concert of music favored and played by Albert Einstein. Liebeck will play the music of Mozart, Brahms, Bloch and Prokofiev at 8 p.m. on Thursday, April 28, in Mills Concert Hall at the Mosse Humanities Building.