A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV
(2019) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. B796, p. 131-154 (2019)
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- A 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 $\sqrt{s} =$ 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 0.16 and 0.45 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.
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Bakhshiansohi, H., Bondu, O., Brochet, S., Bruno, G., Caputo, C., David, P., Delaere, C., Delcourt, M., Giammanco, A., Krintiras, G., Lemaitre, V., Magitteri, A., Piotrzkowski, K., Saggio, A., Vidal Marono, M., Vischia, P., Wertz, S., Zobec, J., CMS Collaboration, & et al. (2019). A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, B796, 131-154. https://doi.org/10.1016/j.physletb.2019.07.013 (Original work published 2019)