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The Intrinsic Parity of Elementary Particles

  • G. C. Wick
  • A. S. Wightman
  • E. P. Wigner
Chapter
Part of the The Scientific Papers book series (WIGNER, volume A / 3)

Abstract

The limitations to the concept of parity of quantum-mechanical states and, in particular, of intrinsic parity of elementary particles are discussed. These limitations are shown to follow from “superselection rules,” i.e., from restrictions on the nature and scope of possible measurements. The existence of such super-selection rules is proved for the case of spinor fields; it is also conjectured that a superselection rule operates between states of different total charge.

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Reference

  1. C. N. Yang and J. Tiomno, Phys. Rev. 79, 495 (1950); see also E. R. Caianiello, Nuovo cimento 7, 534 (1951); 8, 749 (1951); 9, 336 (1952).Google Scholar
  2. For this concept see J. v. Neumann, Mathematische Grundlagen der Quantenmechanik (Verlag. Julius Springer, Berlin, 1932 ), Chap. IV.Google Scholar
  3. See E. Wigner, Nachr. Ges. Wiss. Göttingen, p. 546 (1932).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • G. C. Wick
  • A. S. Wightman
  • E. P. Wigner

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