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[en] We study the spectrum of massive excitations of the three-dimensional φ4 and Ising models, in the broken-symmetry phase. Using a variational method, we show that the spectrum contains all the 0+ states that one expects from duality with the glueball spectrum of the ZZ2 gauge model. From the point of view of continuum φ4 theory, we show that at least one of the states we find has a non-perturbative origin
Journal
Nuclear Physics. B, Proceedings Supplements; ISSN 0920-5632; 
; CODEN NPBSE7; v. 83-84(1-3); p. 715-717
; CODEN NPBSE7; v. 83-84(1-3); p. 715-717