Идентификация новых тяжелых Z’ -бозонов в процессах e+ e- -аннигиляции с продольно поляризованными пучками

Abstract

The method to distinguish the signals induced by new gauge neutral Z' bosons within different classes of theories with an extended gauge sector in the annihilation processes of fermion pair production is developed- This method is based on the polarized differential observables which yield higher sensitivity to Z' parameters with respect to the integrated ones. Polarized experiments performed at the International Linear Collider with an energy of 0 J TeV will allow one to identify unambiguously the E6 models (besides x-model) predicted Z' bosons with masses M z ' < 2 - 4 TeV, and substantially improve the expected bound obtained from unpolarized experiments.