2022 Impact factor 4.4
Particles and Fields
Eur. Phys. J. C 16, 115-130
DOI 10.1007/s100520000393

Six-quark decays of off-shell W+W- pairs via parton-level QCD in electron-positron annihilations

S. Moretti

Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK (e-mail: moretti@rl.ac.uk)

Received: 24 February 2000 / Published online: 18 May 2000 - © Springer-Verlag 2000

We study the decays into six quarks of off-shell pairs of $W^\pm$ bosons produced in electron-positron annihilations, through the ${\cal O}(\alpha_s^2)$ order in the strong coupling constant. We give explicit helicity amplitude formulae. We present numerical results in the context of phenomenological analyses of relevance at LEP2 and future Linear Colliders: such as MW determinations, New Physics and Higgs searches.

Copyright Società Italiana di Fisica, Springer-Verlag 2000