Impact of the W boson decay width on photon bremsstrahlung accompanying W pair production
A. P. Chapovsky, V. A. Khoze, W. J. Stirling
Abstract
The bremsstrahlung spectrum of photons accompanying W pair production depends on the decay width of the unstable W bosons. The dependence arises from the interference between emission at different stages of the production and decay process. We present a quantitative discussion of this effect, and consider the implications for measurements at LEP2 and LC energies.
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