CMS-PAS-B2G-23-004

CMS-PAS-B2G-23-004
Search for diresonant new physics in a final state comprising a gluon and two hadronically decaying W bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
CMS Collaboration
14 June 2024

Abstract: A search for Kaluza-Klein (KK) gluon resonances, $\mathrm{g_{KK}}$ , decaying in cascade into two W bosons and a gluon via a scalar radion R, $\mathrm{g_{KK} \rightarrow gR \rightarrow gWW}$ , is presented. The final state with three large-radius jets, two of which contain the products of hadronically decaying W bosons is considered. The search is performed with $\sqrt{s}=$ 13 TeV proton-proton collision data collected by the CMS experiment at the CERN LHC during 2016-2018, corresponding to an integrated luminosity of 138 fb $^{-1}$ . Both the $\mathrm{g_{KK}}$ and the R resonances are reconstructed. The ratio of their masses is used for event categorization, and the trijet mass distribution is used to extract a potential signal. Upper limits are set on the product of the $\mathrm{g_{KK}}$ production cross section and branching fraction to $\mathrm{gWW}$ . Additionally, lower limits are set on the two resonance masses for an extended warped extra-dimensional model in which the quantum chromodynamics sector propagates into the extended bulk. This search is the first of its kind.
Links: CDS record (PDF) ; CADI line (restricted) ; These preliminary results are superseded in this paper, Submitted to JHEP. The superseded preliminary plots can be found here.

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