Radiative corrections to pair production of unstable particles: Results for E+E− → 4 fermions
作者： A.P. Chapovsky , F.A. Berends , W. Beenakker
DOI: 10.1016/S0550-3213(99)00110-8
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摘要: Abstract Radiative corrections to processes that involve the production and subsequent decay of unstable particles are complex due various theoretical practical problems. The so-called double-pole approximation offers a way out these This method is applied reaction e+e− → W+W− 4 fermions, which allows us address all key issues dealing with particles, like gauge invariance, interactions between different stages reaction, overlapping resonances. Within complete O (α) electroweak evaluated for this off-shell W-pair process. Examples effect on number distributions presented. These comprise mass angular as well photon-energy spectrum.
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