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In this work we investigate a universe filled with a fermionic field and acomplex scalar field, exchanging energy through a Yukawa potential; the modelencodes a symmetry breaking mechanism (on the bosonic sector). In a first case,when the mechanism is not included, the cosmological model furnishes a pureaccelerated regime. In a second case, when including the symmetry breakingmechanism, we verify that the fermion and one of the bosons, of Higgs type,become massive, while the other boson is massless. Besides, the mechanism showsto be responsible for a transition from an accelerated to a decelerated regime,which certifies the importance, in cosmological terms, of its role. Aftersymmetry breaking, the total pressure of the fields change its sign fromnegative to positive corresponding to the accelerated-decelerated transition.For large times the universe becomes a dust (pressureless) dominated Universe.

Exit from accelerated regimes by symmetry breaking in a universe filled with fermionic and bosonic sources