A New Light Boson?

Phys. Rev. Lett. 40, 223 – Published 23 January 1978
Steven Weinberg

Abstract

It is pointed out that a global U(1) symmetry, that has been introduced in order to preserve the parity and time-reversal invariance of strong interactions despite the effects of instantons, would lead to a neutral pseudoscalar boson, the "axion," with mass roughly of order 100 keV to 1 MeV. Experimental implications are discussed.

DOI: http://dx.doi.org/10.1103/PhysRevLett.40.223

  • Received 6 December 1977
  • Published in the issue dated 23 January 1978

© 1978 The American Physical Society

Authors & Affiliations

Steven Weinberg

  • Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138

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