Sirunyan A.M. et al.Tumasyan, A.A.TumasyanPAO-TI CHANGKAI-FENG CHENWEI-SHU HOURONG-SHYANG LUStathes Paganis2021-07-282021-07-282019319007https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064390177&doi=10.1103%2fPhysRevLett.122.121803&partnerID=40&md5=4f9d9d12fc087ff408cf18ea5208827fhttps://scholars.lib.ntu.edu.tw/handle/123456789/574885This Letter describes a search for Higgs boson pair production using the combined results from four final states: bbγγ, bbττ, bbbb, and bbVV, where V represents a W or Z boson. The search is performed using data collected in 2016 by the CMS experiment from LHC proton-proton collisions at s=13 TeV, corresponding to an integrated luminosity of 35.9 fb-1. Limits are set on the Higgs boson pair production cross section. A 95% confidence level observed (expected) upper limit on the nonresonant production cross section is set at 22.2 (12.8) times the standard model value. A search for narrow resonances decaying to Higgs boson pairs is also performed in the mass range 250-3000 GeV. No evidence for a signal is observed, and upper limits are set on the resonance production cross section. ? 2019 CERN.Photons; Confidence levels; Integrated luminosity; Narrow resonances; Pair production; Production cross section; Proton proton collisions; Resonance production; The standard model; Bosons[SDGs]SDG17journal article10.1103/PhysRevLett.122.121803309780572-s2.0-85064390177