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Published May 26, 1969 | public
Journal Article Open

Duality and the hadron spectrum


A form of exchange degeneracy for mesons and baryons is derived from duality and the absence of resonances in exotic channels. The implications of this structure for the hadron spectrum are discussed.

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©1969 The American Physical Society. Received 14 April 1969. We wish to thank Professor Murray Gell-Mann for his encouragement and insistence on the importance of the problem of exchange-degenerate baryon trajectories. Work supported in part by the U.S. Atomic Energy Commission under Contract No. AT(11-1)-68 of the San Francisco Operations Office, U.S. Atomic Energy Commission. [G.Z. was an] Alfred P. Sloan Foundation Fellow.


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