Word: heitler
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Dates: during 1930-1939
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Meanwhile Walther Heitler, co-author of a famed theory of electron absorption in gases, had called into theoretical being still another particle, the neutretto-similar in mass to the barytron but having no electrical charge. The existence of neutrettos has not been proved. But in Chicago last week Physicist Francis R. Shonka of the University of Chicago reported high-altitude cosmic-ray experiments, in which he juggled various arrangements of Geiger-Muller cosmic-ray counters and selective lead shields, obtained evidence of something which he took to be electrically neutral particles of high penetrating power...
...This," he said, "suggests their identification with the neutrettos . . . postulated by Heitler." So the physical family of fundamental particles last week stood as follows...
...Prizeman. In 1934, in an inconspicuous footnote, he hinted at the possible existence of a new particle. The dilemma which confronted him then was a choice between theory and observation. He was studying electrons which occur in cosmic rays. Such electrons are supposed to behave according to the Bethe-Heitler theory, which ascribes certain penetrating powers to electrons of certain velocities. Dr. Anderson's data showed that electrons did conform up to energies of 300,000,000 volts. Above that energy level there appeared to be an unorthodox particle of great penetrating power. If this was an electron...
...August of last year Anderson was more inclined to believe that a new particle really existed than that the Bethe-Heitler theory was at rault. Further help for the theory came from the researches of Caltech's H. Victor Neher at San Antonio, Tex., and Madras, India. Cosmic ray particles are pulled toward the earth's poles by its magnetic field. Particles of high energy resist this pull, and so predominate in the region of the Equator. The latitude difference between Madras (13° N.) and San Antonio (29° N.) furnished valuable data on electrons...
...pound class--Green (H) defeated Heitler (MIT), decision...