[4 offprints, including:] Spin and Unitary-Spin Independence in a Paraquark Model of Baryons and Mesons.
by GREENBERG, Oscar Wallace: (1932-?).
[New York]:: Physical Review Letters, 1964., 1964. 3 offprints. Original self-printed wrappers. Very good. INVENTORY: GREENBERG, O. W. Spin and Unitary-Spin Independence in a Paraquark Model of Baryons and Mesons. Offprint from: Physical Review Letters, Volume 13, number 20, pp. 598-602, 16 November 1964. V540 1-5. GREENBERG, O. W.; Messiah, A. M. L. Symmetrization Postulate and Its Experimental Foundation. Offprint from: The Physical Review, Vol. 136, No. 1B, B 248-B267, 12 October 1964. GREENBERG, O. W. Coupling of Internal and Space-Time Symmetries. Offprint from: The Physical Review, Vol. 135, No. 6B, B1447-B1450, 21 September 1964. GREENBERG, O. W. Magnetic Moments of Spin ½ Particles in External Fields. Offprint from: Physics Letters, Volume 19, number 5, 2 pp., 15 November 1965. Greenberg was anAmerican physicist, professor at University of Maryland, Dept. of Physics & Astronomy, and Rockefeller University. Greenberg posited the existence of a hidden, 3-valued charge, called color charge, of subatomic particles, "quarks,"' in 1964, the same year that quarks were posited as constituents of hadrons by Murray Gell-Mann and, independently, by George Zweig.
(Inventory #: S13267)
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