The flux of high energy cosmic rays coming from the decay of vortons is estimated. If the abundance of loops corresponding to a superconductivity scale coincident with that of the string formation is corrected to be compatible with the critical density of universe, it is found that the emission of one carrier per vorton may produce a flux of one cosmic ray event per km 2 of detector and per year. *
In a real scalar field model in 1 + 1 dimensions with quartic and sextic self-coupling there appears a classically unstable nontopological soliton which is a bubble in the false vacuum. We show that this vacuum is rendered stable by one-and two-loop quantum corrections with appropriate renormalization conditions. In a parameter range of the model, the bubble is stabilized when quantum corrections to its mass are taken into account with a quadratic approximation of the higher-order terms.
Based on knowledge of the ( I + 1)-dimensional chiral Schwinger model, different methods of quantizing Abelian anomalous models are analyzed by means of the Becchi-Rouet-Stora-Tyutin procedure giving indications of the corresponding physical states in 3+ 1 dimensions.
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