Greene, S.Gurrola, A.Janjam, R.Johns, W.Maguire, C.Melo, A.Ni, H.Padeken, K.Romeo, F.Alvarez, J. D. RuizSheldon, P.Tuo, S.Velkovska, J.Verweij, M.Xu, Q.2020-08-062020-08-062019-09-100370-2693http://hdl.handle.net/1803/10263Only Vanderbilt University affiliated authors are listed on VUIR. For a full list of authors, access the version of record at https://www.sciencedirect.com/science/article/pii/S0370269319304691A search for new light bosons decaying into muon pairs is presented using a data sample corresponding to an integrated luminosity of 35.9 fb(-1) of proton-proton collisions at a center-of-mass energy root s = 13 TeV, collected with the CMS detector at the CERN LHC. The search is model independent, only requiring the pair production of a new light boson and its subsequent decay to a pair of muons. No significant deviation from the predicted background is observed. A model independent limit is set on the product of the production cross section times branching fraction to dimuons squared times acceptance as a function of new light boson mass. This limit varies between 0.15 and 0.39 fb over a range of new light boson masses from 0.25 to 8.5 GeV. It is then interpreted in the context of the next-to-minimal supersymmetric standard model and a dark supersymmetry model that allows for nonnegligible light boson lifetimes. In both cases, there is significant improvement over previously published limits. (C) 2019 The Author(s). Published by Elsevier B.V.en-USUnder a Creative Commons license open accessCMSNew light bosonSupersymmetryHidden sectorDark photonMuonArticle10.1016/j.physletb.2019.07.013