Six-fermion production and Higgs boson physics at future e^+ e^- colliders |
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| Authors: | F Gangemi G Montagna M Moretti O Nicrosini F Piccinini |
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| Institution: | (1) Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, Italy , IT;(2) Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Italy , IT;(3) CERN - Theory Division, Geneva, Switzerland , CH;(4) Dipartimento di Fisica, Università di Ferrara and INFN, Sezione di Ferrara, Italy , IT |
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| Abstract: | The six-fermion production processes , with all the lepton flavours and , relevant to the study of the intermediate-mass Higgs boson at future 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.
Received: 20 December 1998 / Published online: 27 April 1999 |
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