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Science 29 May 1992:
Vol. 256. no. 5061, pp. 1287 - 1293
DOI: 10.1126/science.256.5061.1287
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Articles

The Discovery of Quarks

Michael Riordan 1

1 Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94309

Quarks are widely recognized today as being among the elementary particles of which matter is composed. The key evidence for their existence came from a series of inelastic electron-nucleon scattering experiments conducted between 1967 and 1973 at the Stanford Linear Accelerator Center. Other theoretical and experimental advances of the 1970s confirmed this discovery, leading to the present standard model of elementary particle physics.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)