Effects of perturbative colour interference on $WW\rightarrow \mbox{6-Jet}$ distributions

M. Smith

doi:doi:10.1007/s100530050406

EPJ

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2023 Impact factor 4.2

Particles and Fields

Eur. Phys. J. C 9, 95-100
DOI 10.1007/s100529900038

Effects of perturbative colour interference on $WW\rightarrow \mbox{6-Jet}$ distributions

M. Smith

Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, UK (email: smith@hep.phy.cam.ac.uk)

Received: 27 November 1998 / Revised version: 7 February 1999 / Published online: 7 April 1999

Abstract
At LEP II it is hoped to measure the W mass to an accuracy of around 40 MeV. This will require direct reconstruction of the mass of the W from its decay products in both the semi-leptonic and hadronic decay channels. Final state perturbative reconnection effects in hadronic decays are considered and their effect on 6-jet distributions and the reconstructed mass. The perturbative mass shift is found to be $\sim$ 50 keV in the negative direction.