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Double Higgs production at the linear colliders and the probing of the Higgs self-coupling
Authors:F Boudjema  E Chopin
Institution:1. Laboratoire de Physique Théorique ENSLAPP, URA 14-36 du CNRS, associée à l’E.N.S de Lyon et à l’Universite de Savoie, B.P.110, F-74941, Annecy-Le-Vieux Cedex, France
Abstract:We study double Higgs production in the e+e? and γγ modes of the linear collider. It is also shown how one can probe the scalar potential in these reactions. We discuss the effective longitudinal W approximation in γγ processes and the W LWL luminosities in the two modes of a high-energy linear collider. A generalised non-linear gauge-fixing condition, which is particularly useful for tree-level calculations of electroweak processes for the laser induced collider, is presented. Its connection with the background-field approach to gauge fixing is given.
Keywords:
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