Word: eta
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Dates: during 1960-1969
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THOMAS A. CHOQUETTE: Eliot House Committee, treasurer; varsity football and track; Pre-Law Society; Pi Eta Club; Hasty Pudding...
WILLIAM R. FITZSIMMONS: Dean's List; Phillips Brooks House, Mental Hospitals Committee; CCD Teacher; freshman hockey; varsity hockey; Varsity Club; Kirkland House Social Committee; H-R Young Democrats; H-R Catholic Club; Pi Eta Club; Harvard Club of Boston, World War II Memorial Scholar; Rotary International Fellowship Alternate No.1: National Science Foundation undergraduate research in social relations, summer 1966; Combined Charities Solicitor...
Center of the scientific storm is a subatomic particle called the eta meson, which lives for only a billionth of a billionth of a second before breaking down into three smaller particles called pions-one positive, one negative, one without any electrical charge. According to the laws of symmetry, the positive and negative pions should have identical energies. But when a team led by Columbia University's Dr. Paolo Franzini examined 1,441 photographs of eta-meson decay in the Brookhaven bubble chamber (TIME, July 8), they found that in 53% of the photographs the positive pion apparently...
Reversing the Field. In their experiment at Geneva, the European physicists also studied eta-meson decay. They analyzed 10,665 photographs of tracks made by pions in the CERN spark chamber, and in their larger, more reliable statistical sample, they found no significant difference in the energy levels of positive and negative pions...
...synchrotron in January 1965. Along with his wife, Dr. Juliet Lee-Franzini, Drs. Charles Baltay and Lawrence Kirsch, he fired particles called pi mesons into a bubble chamber filled with liquid deuterium. About one-thirtieth of the times that a pi meson hit a deuterium nucleus, out came the eta meson, which decays into three pions. The pions streaked through the bubble chamber, the positive leaving a line that curved to the right, the negative peeling off to the left, and the neutral leaving no path at all. After analyzing photographs of 1,441 sets of such tracks, the Franzinis...