Lifetime of pulsating solitons in certain classical models
Bogolyubskii I.L., Makhan'kov V.G.
The behaviors of the spherically-symmetrical quasi-solitons of the Higgs field and of the sine-Gordon equation are qualitatively similar. The greater part of the energy of quasi-planar solitons is emitted within several pulsations. The lifetime of the "single-scale" energy clusters is estimated.