Search for Supersymmetry Using Events with a Photon Plus Lepton and Missing Transverse Momentum in Proton-Proton Collisions at sqrt(s) = 13 TeV with the CMS Detector SunMenglei 2019 Results of a search for new physics in events with a photon, an electron or muon, and large missing transverse momentum (pT<sup>miss</sup> ) is presented. The study<br>is based on a sample of proton-proton collisions at sqrt(s)= 13 TeV corresponding to an integrated luminosity of 35.9 fb<sup>-1</sup> collected with the CMS detector in 2016. Many models of new physics predict events with significant pT<sup>miss</sup> in addition to electroweak gauge bosons. Models of supersymmetry (SUSY) with gauge-mediated supersymmetry breaking naturally yield events with photons in the final state. Searches for events with both a photon and a lepton enhanced the sensitivity to electroweak production of supersymmetric particles. No significant excess above the standard model background is observed in the signal<br>region. We interpret the results of our search in the context of SUSY with gauge-mediated supersymmetry breaking as well as simplified SUSY models.