Global interpretation of LHC indications within the GeorgiMachacek Higgs model
Abstract
Following various LHC indications for new scalars, an interpretation of these is given in terms of the GeorgiMachacek (GM) model. On top of the confirmed SM Higgs boson, there are indications for a light Higgs at 96 GeV, for a CPodd boson at 400 GeV, A(400), and for a heavy Higgs boson at 660 GeV. An extension of the GM is needed to interpret the fermion couplings of A(400). Potentially interesting deviations are also observed in the ttW crosssection measurement, which naturally fit into this picture. None of them crosses the fatidic five s.d. evidence but the addition of these effects, consistent with GM, suggest that there are good hopes for solid discoveries at HLLHC, which should boost the motivation for future machines. The GM model also provides a useful framework to estimate the rates expected for various channels at an $e^+e^$ collider, together with the range of energies needed. ILC performances are used for a quantitative estimate of these rates for the prominent channels.
 Publication:

arXiv eprints
 Pub Date:
 March 2021
 DOI:
 10.48550/arXiv.2103.12639
 arXiv:
 arXiv:2103.12639
 Bibcode:
 2021arXiv210312639R
 Keywords:

 High Energy Physics  Phenomenology;
 High Energy Physics  Experiment
 EPrint:
 Talk presented at the International Workshop on Future Linear Colliders (LCWS2021), 1518 March 2021 and at ILC Workshop on Potential Experiments (ILCX2021), 2629 October 2021. 27 pages, 16 figures