DOI 10.1007/s100520000515
Impact of the W boson decay width
on photon bremsstrahlung accompanying W pair production
A.P. Chapovsky1 - V.A. Khoze2 - W.J. Stirling1,2
1 Department of Physics, University of Durham, Durham, DH1 3LE, UK
2 Department of Mathematical Sciences, University of Durham, Durham, DH1 3LE, UK
Received: 19 July 2000 / Published online: 13 November 2000 - © Springer-Verlag 2000
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.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
