W, Z, and Higgs bosons as portals to exotic physics
Since the LHC collider started operating, more than a decade ago, several trillions of proton-proton collisions have taken place.
Search for double Higgs production with multiple leptons
Using events containing multiple leptons, the CMS Collaboration looked for production of a pair of Higgs bosons, but could not find any evidence. However there is some extra events in data with high mass values for the Higgs boson pair when compared with total expectation of Higgs boson pair signal and background. Only with more data the situation can be clarified.