Search for a new scalar resonance decaying to a Higgs boson and another new scalar particle in the final state with two bottom quarks and two photons in proton-proton collisions at $$sqrt{s}=13$$ TeV
Journal Article
Overview
abstract
; A; bstract; ; ; A search is presented for a new scalar resonance, X, decaying to a standard model Higgs boson and another new scalar particle, Y, in the final state where the Higgs boson decays to a; ; $$text{b}overline{text{b} }$$; ; pair, while the Y particle decays to a pair of photons. The search is performed in the mass range 240���1000 GeV for the resonance X, and in the mass range 70–800 GeV for the particle Y, using proton-proton collision data collected by the CMS experiment at; ; $$sqrt{s}=13$$; ; TeV, corresponding to an integrated luminosity of 132 fb; ; −; 1; ; . In general, the data are found to be compatible with the standard model expectation. Observed (expected) upper limits at 95% confidence level on the product of the production cross section and the relevant branching fraction are extracted for the X; →; YH process, and are found to be within the range of 0.05–2.69 (0.08–1.94) fb, depending on; m; X; and; m; Y; . The most significant deviation from the background-only hypothesis is observed for X and Y masses of 300 and 77 GeV, respectively, with a local (global) significance of 3.33 (0.65) standard deviations.;
