Electro-weak forces

The weak interaction, some lO times weaker than the electrom neUc interaction, occurs between "leptons and in the decay of hadrons. It is responsible for the "beta decay of particles and nuclei. In the current model, the weak interaction is visualized as a force mediated by the exchange of virtual particles, called intermediate vector bosons. The weak interactions are described by "electro-weak theory, which unifies them with the electromagnetic interactions. 

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