Searching for new scalar bosons via triple-top signature in $cg\to t{S}^0\to tt\bar{t}$

Abstract

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 $cg\to t{H}^0$, $t{A}^0$ followed by $H^0$, $A^0\to t\bar{t}$, $t\bar{c}$, 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.

references added, minor modifications, matched with the published version

References in corpus (4)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Four Tops for LHC

Cited by in corpus (7)

• Rare Top Decays as Probes of Flavorful Higgs Bosons
• Constraining $t\to u$ flavor changing neutral Higgs coupling at the LHC
• The $tZH$ and $tZh$ production in 2HDM: Prospects for discovery at the LHC
• Top-Assisted Di-Higgs boson Production Motivated by Baryogenesis
• Perspectives and Outlook from HEP Window on the Universe
• Prospect and implications of $cg\to b{H}^{+}\to bA{W}^{+}$ production at the LHC
• Electroweak baryogenesis via bottom transport: complementarity between LHC and future lepton collider probes