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Adam, W; Van Doninck, W; Van Mulders, P; Bilin, B; Bondu, O; Nogima, H; Padula, Sandra S; Rykaczewski, H; Luukka, P; Ganjour, S; Lobanov, A; Conte, E; Campbell, A; Pitzl, D; Perieanu, A; Akbiyik, M; Tziaferi, E; Papadopoulos, I; Szillasi, Z; Ujvari, B; Mal, P; Mandal, K; Meena, M; Gola, M; Priyanka, P; Ghosh, S; Rout, P K; Shukla, P; Castro, A; Dallavalle, G M; Sguazzoni, G; Piccolo, D; Khan, W A; Meola, S; Bragagnolo, A; De Castro Manzano, P; Ronchese, P; Magnani, A; Manoni, E; Rossi, A; Manca, E; Palla, F; Sola, V; Kim, T J; Jo, Y; Lee, S; Yu, I; Oropeza Barrera, C; Górski, M; Szleper, M; Traczyk, P; Zarubin, A; Stolin, V; Aushev, T; Tarkovskii, E; Camporesi, T; Cepeda, M; Chen, Y; Deelen, N; Karacheban, O; Perez, E; Petrucciani, G; Quittnat, M; Lu, R-S; Steen, A; Cerci, S; Demiroglu, Z S; Tekten, S; Heath, G P; Iles, G; Komm, M; Nash, J; Palladino, V; Buccilli, A; Kukral, O; Cousins, R; Hauser, J; Wimpenny, S; Bornheim, A; Patel, R; Ulmer, K A; Thom, J; Green, D; Spiegel, L; Verzocchi, M; Bourilkov, D; Saha, A; Boren, S; Mitchell, T; Rebassoo, F; Karmgard, D J; Wayne, M; Antonelli, L; Khatiwada, A; Freed, S; Kunori, S; Johns, W; Padeken, K; Xu, Q; Arenton, M W
Physical review letters, 09/2018, Letnik: 121, Številka: 12Journal Article
The 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 sqrts=13 TeV, are described. When combined with previous VH measurements using data collected at sqrts=7, 8, and 13 TeV, an excess of events is observed at m_{H}=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→bbover ¯ 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.
