A search for heavy neutral gauge bosons (𝑍′) decaying into a pair of tau leptons is performed in proton-proton collisions at √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.

Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. w., Benato, L., Bergauer, T., et al. (2025). Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at √𝑠=13  TeV. PHYSICAL REVIEW D, 111(11), 112004-1-112004-26 [10.1103/physrevd.111.112004].

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

Battilana, C.;Bonacorsi, D.;Castro, A.;Cuffiani, M.;Diotalevi, T.;Fanfani, A.;Giommi, L.;Guiducci, L.;Lorusso, M.;Paggi, G.;Rossi Tisbeni, S.;Rovelli, T.;Siroli, G.  P.;
2025

Abstract

A search for heavy neutral gauge bosons (𝑍′) decaying into a pair of tau leptons is performed in proton-proton collisions at √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.
2025
Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. w., Benato, L., Bergauer, T., et al. (2025). Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at √��=13  TeV. PHYSICAL REVIEW D, 111(11), 112004-1-112004-26 [10.1103/physrevd.111.112004].
Hayrapetyan, A.; Tumasyan, A.; Adam, W.; Andrejkovic, J.  w.; Benato, L.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Hussain, P.  s....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1039170
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