Authors: Ervin Goldfain
The possibility of a hidden sector of particle physics that lies beyond the energy range of the Standard Model has been recently advocated by many authors. A bizarre implication of this conjecture is the emergence of a continuous spectrum of massless fields with non-integral scaling dimensions called "un-particles". The purpose of this Letter is to show that the idea of "un-particles" was considered in at least two previous independent publications, prior to its first claimed disclosure.
Comments: 1 page, Published in "Progress in Physics" vol. 3 (2008).
[v1] 16 Mar 2010
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