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Spin independence, W spin, parity, and SU(6) symmetry

Lipkin, H. J. and Meshkov, S. (1966) Spin independence, W spin, parity, and SU(6) symmetry. Physical Review, 143 (4). pp. 1269-1274. ISSN 0031-899X. doi:10.1103/PhysRev.143.1269.

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The assumption of strict spin independence of strong interactions between elementary particles forbids all three-meson and meson-baryon-baryon couplings, such as ρππ, NNπ, and N*Nπ. It is shown that these catastrophies may be avoided, even in the nonrelativistic limit, by adopting a modified definition of spin independence, i.e., W-spin independence. A nonrelativistic definition of W spin is obtained which requires only a trivial change to yield the relativistic description. The consequences of the assumption of W-spin independence are explored.

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Additional Information:©1966 The American Physical Society. Received 22 October 1965. The authors are indebted to L. Michel and M. Peshkin for their suggestions and comments, and to F. Coester, H. Harari, T.D. Lee, A. Pais and B. Sakita for many useful discussions. Work supported in part by the U.S. Office of Naval Research, Contract No. NA onr 11 65 and U.S. Atomic Energy Commission.
Issue or Number:4
Record Number:CaltechAUTHORS:LIPpr66
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8797
Deposited By: Tony Diaz
Deposited On:18 Sep 2007
Last Modified:08 Nov 2021 20:53

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