Searching for new scalar bosons via triple-top signature in cg -> tS(0) -> tt(t)over-bar

The alignment phenomenon, that the 125 GeV h(0) boson so resembles the Standard Model Higgs boson, can be understood in a two Higgs doublet model without discrete symmetry. New Yukawa couplings rho(tt) and rho(tc) offer new avenues to discover the extra scalar H-0 and pseudoscalar A(0). We propose to search for cg -> tH(0), tA(0) followed by H-0, A(0) -> t (t) over bar, t (c) over bar c, where same-sign dileptons could be the harbinger, with triple-top, in the signature of three leptons plus three b-jets, as confirmation. Discovery could touch upon the origin of baryon asymmetry of the Universe. (c) 2017 The Authors. Published by Elsevier B.V.