Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-SMP-24-017 | ||
| Search for new physics in triple boson production at 13 TeV using the effective field theory approach | ||
| CMS Collaboration | ||
| 2025-09-30 | ||
| Abstract: A search for new physics in the production of three massive gauge bosons (VVV, where V is W or Z) is presented. The event selection emphasizes the ``boosted'' regime in which all three bosons have a transverse momentum above 200 GeV. Standard model processes contribute few events in the boosted regime. When a boosted W or Z boson decays hadronically, the decay products tend to form a large-radius jet with substructure called a V-tagged jet. Special techniques to reconstruct and select V-tagged jets are applied. Events are categorized according to the number and kinematic features of charged leptons and V-tagged jets. Event yields are obtained in bins of a suitable kinematic variable such as the scalar sum of the transverse momenta of the reconstructed objects in the event. No excess over standard model expectations is observed, and bounds are placed on Wilson coefficients for a set of mass dimension-6 and -8 operators in the framework of standard model effective field theory. The two most stringent bounds placed by this analysis are $ -$0.13 $ < c_{\text{W}}/\Lambda^2 < $ 0.12 TeV$ ^{-2} $ and $ -$0.24 $ < c_{\text{Hq3}}/\Lambda^2 < $ 0.21 TeV$ ^{-2} $. | ||
| Links: CDS record (PDF) ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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