Remarkable signals of $t_R$ compositeness

Abstract : We are looking for remarkable differences between predictions of the standard model and those of $t_R$ compositeness (while the $t_L$ remains elementary) in various basic $t\bar t$ production processes, without having to make difficult final polarization analyses. We assume the presence of $q^2$ dependent form factors which first suppress the $t_R$ contributions at high $q^2$, and in addition, may also lead to an effective $q^2$ dependent top mass. We further assume that these effects disappear at low $q^2$ so that there are no anomalous couplings. We show that large specific differences indeed appear in the high energy limits of cross sections and asymmetries in $e^-e^+$, gluon+gluon, $\gamma\gamma$ collisions and other fusion processes and that this should lead to a strategy for analyzing them.
Type de document :
Pré-publication, Document de travail
LUPM:17-001. 16 pages, 11 figures, References are added. 2017
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Contributeur : Nicolas Clementin <>
Soumis le : mardi 17 janvier 2017 - 10:47:57
Dernière modification le : mardi 10 octobre 2017 - 16:16:26


  • HAL Id : hal-01437322, version 1
  • ARXIV : 1611.02426



G. J. Gounaris, Fernand Michel Renard. Remarkable signals of $t_R$ compositeness. LUPM:17-001. 16 pages, 11 figures, References are added. 2017. 〈hal-01437322〉



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