QED Interconnection Effects on W Momentum Distributions at LEP 2
Abstract
The process $\ee \to \W^+\W^ \to \f_1 \fbar_2 \, \f_3 \fbar_4$ contains charges in the initial, intermediate and final stages. This gives a rich selection of possible QED interconnection effects. Coulomb interaction is the simplest of these, and can thus be used to explore consequences. We study a number of experimental observables, with emphasis on those related to the W momentum distribution. Secondorder Coulomb effects are shown to be practically negligible. The limited LEP~2 statistics will not allow detailed tests, so any theory uncertainty will be reflected in the systematic error on the W mass. Currently the uncertainty from this source may be as high as 20~MeV.
 Publication:

arXiv eprints
 Pub Date:
 August 1995
 arXiv:
 arXiv:hepph/9508332
 Bibcode:
 1995hep.ph....8332K
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 1+27 pages, including 23 eps figures, use uudecode and gunzip to restore original file, run LaTeX2epsilon with epsfig package, figures are included in filecontents environments