CMS-PAS-SMP-23-005 | ||
Observation of γγ→ττ in proton-proton collisions and limits on the anomalous electromagnetic moments of the τ lepton | ||
CMS Collaboration | ||
12 March 2024 | ||
Abstract: The photon-induced production of a pair of τ leptons, γγ→ττ, is observed for the first time in proton-proton collisions. The observation is based on a data set recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb−1. Events with a small number of tracks close to the di-τ vertex are selected to isolate photon-induced processes. Limits on the anomalous electromagnetic moments of the τ lepton originating from potential new physics effects on the γττ vertex are also set. | ||
Links:
CDS record (PDF) ;
Physics Briefing ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Accepted by ROPP. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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