Bound states via Higgs exchanging and heavy resonant di-Higgs

摘要: Abstract The existence of Higgs boson h predicted by the standard model (SM) was established and hunting for clues to new physics (NP) hidden in has become top priority particle physics. In this paper we explore an intriguing phenomenon that prevails NP associated with h, bound state ( B , referring ground only) relatively heavy particles ϕ out via interchanging h. This is well-motivated due intrinsic properties h: It zero spin light mass, capable mediating Yukawa interactions; moreover, it may be strongly coupled several important contexts, from addressing naturalness problem compositeness/supersymmetry (SUSY)/classical scale invariance understanding neutrino mass origin radiatively matter asymmetry electroweak baryogensis. resonance being a neutral scalar boson, implications large hadron collider (LHC) di-Higgs search because yields clear resonant signature at high region ≳ 1 TeV ). other words, searching offers avenue probe sector Higgs-portal. For illustration concentrate on two examples, stop SUSY inert doublet radiative model. particular, h-mediation opens wide window conventional stoponium current date begins have sensitivity around TeV.