DOI 10.1007/s100529900021
Six-fermion production and Higgs boson physics at future e+ e- colliders
F. Gangemi1,2 - G. Montagna1,2 - M. Moretti3,4 - O. Nicrosini2,1 - F. Piccinini2,1
1 Dipartimento di Fisica Nucleare e Teorica, Università di
Pavia, Italy
2 Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Italy
2 CERN - Theory Division, Geneva, Switzerland
3 Dipartimento di Fisica, Università di Ferrara and INFN, Sezione di
Ferrara, Italy
Received: 20 December 1998 / Published online: 27 April 1999
Abstract
The six-fermion production processes 
, with all the lepton flavours
and q=u,d,c,s, relevant to the study of the
intermediate-mass Higgs boson at future e+e- linear colliders
are analysed. A Monte Carlo program, taking into account the whole set of
tree-level scattering amplitudes and the relevant radiative effects,
is developed to provide integrated cross-sections and generation of unweighted
events. The complete calculation is compared with the available
results of real Higgs production, and the opportunities of
precision studies with event generation are discussed,
demonstrating the relevance of a full six-fermion calculation.
Numerical results for integrated cross-sections with various kinematical
cuts and including radiative effects are given and commented.
In the analysis of event samples, several distributions are studied
and found to be sensitive to the presence and to the properties of the
Higgs boson.
Copyright Springer-Verlag
