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Science 29 April 1977:
Vol. 196. no. 4289, pp. 521 - 523
DOI: 10.1126/science.196.4289.521
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Articles

Quarks with Unit Charge: A Search for Anomalous Hydrogen

RICHARD A. MULLER 1, LUIS W. ALVAREZ 1, WILLIAM R. HOLLEY 1, and EDWARD J. STEPHENSON 1

1 Lawrence Berkeley Laboratory, Berkeley, California 94720

Quarks of charge +1 and other anomalous hydrogen have been sought by using the 88-inch cyclotron at Berkeley as a high-energy mass spectrometer, with natural hydrogen and deuterium as the sources of ions. No quarks were observed, and limits were placed on their ratio to protons on the earth that vary from < 2 x 10–19for high masses (3 to 8.2 atomic mass units) to 10–13 for the lowest masses (< frac13 atomic mass unit).

Submitted on January 11, 1977


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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