Spotting hidden sectors with Higgs binoculars

Understand

We explore signals of new physics with two Higgs bosons and large missing transverse energy at the LHC.

• Such a signature is characteristic of models for dark matter or other secluded particles that couple to the standard model through an extended scalar sector.
• Our goal is to provide search strategies and an interpretation framework for this new signature that are applicable to a large class of models.
• To this end, we define simplified models of hidden sectors leading to two different event topologies: symmetric decay, i.e., pair-produced mediators decaying each into a Higgs plus invisible final state; and di-Higgs resonance, i.e., resonant Higgs-pair production recoiling against a pair of invisible particles.