Speaker
Prof.
Kentarou Mawatari
(Iwate U.)
Description
We investigate quantum entanglement and Bell-inequality violation in top-antitop pair production at future lepton colliders. We examine how those in the SM are modified in several well-motivated extensions of the SM:(i) a neutral scalar mediator that couples to charged leptons and top quarks via Yukawa interactions and contributes as an additional s-channel exchange; (ii) the minimal gauged U(1)B-L model, which introduces a new neutral gauge boson Z' coupling vectorially to SM fermions; and (iii) a Randall-Sundrum scenario, in which the exchange of massive Kaluza-Klein gravitons arising from a warped extra dimension induces additional spin-dependent interactions.
Authors
Prof.
Kentarou Mawatari
(Iwate U.)
Prof.
Masato Arai
(Yamagata U.)
Nobuchika Okada
(University of Alabama)