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| CMS-PAS-SMP-22-016 | ||
| Search for the Z boson decay to $ \tau^+\tau^-\mu^+\mu^- $ in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| 25 March 2023 | ||
| Abstract: The first search for the Z boson decay to $ \tau^+\tau^-\mu^+\mu^- $ is presented. The data analyzed were collected by the CMS experiment at the CERN LHC in proton-proton collisions at a center-of-mass energy of 13 TeV and correspond to an integrated luminosity of 138 fb$^{-1}$. Targeting tau lepton decays to muons and neutrinos, events with two pairs of oppositely charged muons are analyzed. The data are found to be compatible with the predicted background. A 95% confidence level upper limit of 6.2 is placed on the ratio of the $ {\mathrm{Z}\to\tau^+\tau^-\mu^+\mu^-} $ to $ {\mathrm{Z}\to\mu^+\mu^-\mu^+\mu^-} $ branching fractions, excluding values above 6.9 times the standard model expectation. | ||
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These preliminary results are superseded in this paper, Submitted to PRL. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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