A New Light Boson?
Steven WeinbergLyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138
1978en
ABI
Annotatsiya
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.
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