Soft Photons in $W^{+}{W}^{-}$ Production at LEP200

Abstract

The pattern of soft photon radiation in $\ee\to\ww$ has a rich structure, with contributions from photon emission off the initial state and off the final state particles both before and after decay. In particular, the interference between the contributions involving the decaying $W$'s depends on the decay width. We review the theoretical result for the radiation pattern, and present predictions for LEP200, {\it i.e.} in $\ee$ annihilation just above $\ww$ threshold.

LaTeX, 9 pages + 4 figures available from the authors or via anonymous ftp; DTP/93/16, UCD-93-11, LU-TP-93-9. Brief discussion of event rates added

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