W polarization in $e^+e^-$, gluon-gluon and $\gamma\gamma \to W t\bar b$ for testing the top quark mass structure and the presence of final interactions Auteur(s): Renard F. M. (Document sans référence bibliographique) 2018-07-02 Ref Arxiv: 1807.00621 Ref. & Cit.: NASA ADS Résumé: We analyze the $Wt\bar b$ production processes and especially the rate of longitudinal $W$ polarization sensitive to a possible top quark mass scale dependence and to the presence of strong final state $Wt$ interactions for example generated by a dark matter environment. We give illustrations for the three processes $e^+e^-$, gluon-gluon and $\gamma\gamma \to W t\bar b$. Commentaires: 17 pages, 12 figures