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Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at sqrt{s} = 13 TeV

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arxiv 2412.04357 v2 pith:E5YYSYYL submitted 2024-12-05 hep-ex

Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at sqrt{s} = 13 TeV

classification hep-ex
keywords searchbosoncollisionsdecayingheavyleptonmodelneutral
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A search for heavy neutral gauge bosons (Z') decaying into a pair of tau leptons is performed in proton-proton collisions at $\sqrt{s}$ = 13 TeV at the CERN LHC. The data were collected with the CMS detector and correspond to an integrated luminosity of 138 fb$^{-1}$. The observations are found to be in agreement with the expectation from standard model processes. Limits at 95% confidence level are set on the product of the Z' production cross section and its branching fraction to tau lepton pairs for a range of Z' boson masses. For a narrow resonance in the sequential standard model scenario, a Z' boson with a mass below 3.5 TeV is excluded. This is the most stringent limit to date from this type of search.

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  1. Combination of searches for heavy vector boson resonances in proton-proton collisions at $\sqrt{s}$ = 13 TeV

    hep-ex 2026-01 conditional novelty 6.0

    A CMS combination of searches finds no heavy vector boson resonance and excludes HVT W′/Z′ bosons below 5.5 TeV (weak coupling), 4.8 TeV (strong coupling), and 2.0 TeV for VBF production at 95% CL.