CMS CollaborationKarapınar, Güler2020-02-282020-02-282018Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Observation of Higgs boson decay to bottom quarks. Physical Review Letters,121(12). doi:10.1103/PhysRevLett.121.1218010031-90070031-90071079-7114https://doi.org/10.1103/PhysRevLett.121.121801https://hdl.handle.net/11147/7746The observation of the standard model (SM) Higgs boson decay to a pair of bottom quarks is presented. The main contribution to this result is from processes in which Higgs bosons are produced in association with a W or Z boson (VH), and are searched for in final states including 0, 1, or 2 charged leptons and two identified bottom quark jets. The results from the measurement of these processes in a data sample recorded by the CMS experiment in 2017, comprising 41.3 fb-1 of proton-proton collisions at s=13 TeV, are described. When combined with previous VH measurements using data collected at s=7, 8, and 13 TeV, an excess of events is observed at mH=125 GeV with a significance of 4.8 standard deviations, where the expectation for the SM Higgs boson is 4.9. The corresponding measured signal strength is 1.01±0.22. The combination of this result with searches by the CMS experiment for H→bb in other production processes yields an observed (expected) significance of 5.6 (5.5) standard deviations and a signal strength of 1.04±0.20.eninfo:eu-repo/semantics/openAccessGermanium compoundsTellurium compoundsHiggs bosonStandard deviationArticle2-s2.0-8505403607710.1103/PhysRevLett.121.12180110.1103/PhysRevLett.121.121801