Abstract
This chapter discusses the partial and full widths of the W- and Z-bosons and projects for experiments that are designed to produce these particles. The masses of intermediate bosons are unambiguously predicted by the standard model of the electroweak interaction, provided the Weinberg angle is known. According to the parton model, the total probability of the W-boson decay to a hadronic state with the quantum numbers of the u d ¯ pair is equal to the probability of decay into this pair calculated with strong interactions switched off. The same is true for the u s ¯ , c s ¯ , and c d ¯ pairs. The pair production cross section of W-bosons is smaller than the resonance production cross section of Z-bosons by approximately 3–4 orders of magnitude. Besides, this process requires even higher energies for the colliding electrons and positrons. The chapter further presents the creation of W-bosons in a purely leptonic collision.
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