Combined search for supersymmetry with photons in proton-proton collisions at $\sqrt{s} =$ 13 TeV

Understand

A combination of four searches for new physics involving signatures with at least one photon and large missing transverse momentum, motivated by generalized models of gauge-mediated supersymmetry (SUSY) breaking, is presented.

• All searches make use of proton-proton collision data at $\sqrt{s} =$ 13 TeV, which were recorded with the CMS detector at the LHC in 2016, and correspond to an integrated luminosity of 35.9 fb$^{-1}$.
• Signatures with at least one photon and large missing transverse momentum are categorized into events with two isolated photons, events with a lepton and a photon, events with additional jets, and events with at least one high-energy photon.
• No excess of events is observed beyond expectations from standard model processes, and limits are set in the context of gauge-mediated SUSY.