Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-11-23
Eur.Phys.J.C9:31-41,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 27 pages, 13 figures included. Minor changes, final version to appear in Eur. Phys. J. C
Scientific paper
10.1007/s100520050510
The six-fermion production processes $e^+e^-\to q\bar q l^+ l^-\nu\bar\nu$, 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.
Gangemi Fabrizio
Montagna Guido
Moretti Marco
Nicrosini Oreste
Piccinini Fulvio
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