Model-independent search for pair production of new bosons decaying into muons in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Abstract

The results of a model-independent search for the pair production of new bosons within a mass range of 0.21 $<$ $m$ $<$ 60 GeV, are presented. This study utilizes events with a four-muon final state. We use two data sets, comprising 41.5 fb${}^{-1}$ and 59.7 fb${}^{-1}$ of proton-proton collisions at $\sqrt{s}$ = 13 TeV, recorded in 2017 and 2018 by the CMS experiment at the CERN LHC. The study of the 2018 data set includes a search for displaced signatures of a new boson within the proper decay length range of 0 $<$ $c\tau$ $<$ 100 $\mu$m. Our results are combined with a previous CMS result, based on 35.9 fb${}^{-1}$ of proton-proton collisions at $\sqrt{s}$ = 13 TeV collected in 2016. No significant deviation from the expected background is observed. Results are presented in terms of a model-independent upper limit on the product of cross section, branching fraction, and acceptance. The findings are interpreted across various benchmark models, such as an axion-like particle model, a vector portal model, the next-to-minimal supersymmetric standard model, and a dark supersymmetric scenario, including those predicting a non-negligible proper decay length of the new boson. In all considered scenarios, substantial portions of the parameter space are excluded, expanding upon prior results.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-21-004 (CMS Public Pages)

References in corpus (14)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• A Theory of Dark Matter
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Collider Probes of Axion-Like Particles
• Illuminating Dark Photons with High-Energy Colliders
• Non-Abelian Dark Sectors and Their Collider Signatures
• Scalar Simplified Models for Dark Matter
• Direct Detection of Multi-component Secluded WIMPs
• Astrophysical Axion Bounds: The 2024 Edition
• New constraints on a light CP-odd Higgs boson and related NMSSM Ideal Higgs Scenarios
• LHC discovery potential of the lightest NMSSM Higgs in the h1 -> a1 a1 -> 4 muons channel
• Multilepton dark matter signals

Cited by in corpus (3)

• ALPs and HNLs at LHC and Muon Colliders: Uncovering New Couplings and Signals
• Characterizing Dark Bosons at Chiral Belle
• Di-decay signature of new physics particles at intensity frontier experiments