WEI-SHU HOU2021-07-282021-07-28201918248039https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098914226&partnerID=40&md5=bb1c99fa4a45e953fb9669ffa4961375https://scholars.lib.ntu.edu.tw/handle/123456789/574912We advocate two Higgs doublet model without Z2 symmetry, and focus on the extra top Yukawa couplings ρtt and ρtc. We show that A0 and H0 bosons are still allowed at 300 GeV mass, where cg → tA0, tH0 can lead to ttc¯ same-sign top, or top-assisted di-Higgs th0h0 signatures, resp. As bonus material, we explore the constraint provided by current 4-top search, but advocate direct search for triple-top generated by cg → tH0/A0 → ttt¯ for H0, A0 above tt¯ threshold, and offer some insight on the mild but intriguing “excess” found by CMS in gg → A0 → tt¯ at 400 GeV. ? Owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).Bosons; Direct search; Higgs doublet models; Yukawa couplings; Germanium compoundsconference paper2-s2.0-85098914226