Simultaneous search for extra light and heavy Higgs bosons via cascade decays
Abstract
Models with extended Higgs sectors can contain several additional Higgs states, heavier or lighter than the SM Higgs boson. The couplings of lighter extra states to SM particles can be strongly reduced, leading to small cross sections for their direct production. Heavier extra states can have larger couplings to SM particles and, moreover, have large branching fractions into lighter extra states, notably into a SMlike Higgs boson accompagnied by another Higgs state which can be lighter or heavier than 125 GeV. Motivated by corresponding scenarios in the NMSSM we study the prospects for the discovery or exclusion of cascade decays ggF → H _{3} → H _{2} + H _{1} in the b\overline{b}b\overline{b}, b\overline{b}τ τ and b\overline{b}γ γ final states where either H _{1} or H _{2} can be SMlike. Significant regions of the NMSSM parameter space can be tested by these searches. These are, however, not confined to models of the NMSSM type.
 Publication:

Journal of High Energy Physics
 Pub Date:
 November 2017
 DOI:
 10.1007/JHEP11(2017)008
 arXiv:
 arXiv:1707.08522
 Bibcode:
 2017JHEP...11..008E
 Keywords:

 Higgs Physics;
 Beyond Standard Model;
 Supersymmetric Standard Model;
 High Energy Physics  Phenomenology;
 High Energy Physics  Experiment
 EPrint:
 34 pages, 64 figures, explanations, figures and reference added, to appear in JHEP