2016/08/11 by Kumar, Mukesh, von Buddenbrock, Stefan, Chakrabarty, Nabarun +7
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)
paper · doi:10.48550/arxiv.1608.03466
The confirmation of the Higgs boson in Run I data at the Large Hadron Collider (LHC) and the excesses in recent Run II data suggest scenarios beyond the Standard Model (SM). We pursue a study in a minimal model which is an extension of a scalar doublet in the SM known as two-Higgs doublet model (THDM). Following earlier suggestions two real scalars χ and S have been introduced in the THDM where χ is treated as a candidate for dark matter. χ does not receive any vacuum expectation value (vev) in the model whereas the Higgs-like scalar S acquires vev. This allows small mixing between the CP-even scalars of the THDM, h, H and S. In this study the mass spectrum of new scalars is taken to be 2 mh < mH < 2 mt, mχ< mh/2, mh \lesssim mS \lesssim mH - mh, mA > 2 mt and mH^± < mA, where mh and mt is masses of the SM Higgs and top-quark respectively, mH, mA and mH^± are the masses of the heavy CP-even scalar H, CP-odd scalar A, and charged Higgs H^±, respectively. A partial list of potential search channels at the LHC has been provided with possible phenomenological consequences. The expected phenomenology and constraints on parameters are also discussed in a model-independent approach .