Search for the charged-lepton-flavor-violating decay Z→ eμ in pp collisions at √s = 13 TeV with the ATLAS detector
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| Publication date | 01-08-2023 |
| Journal | Physical Review D. Particles and Fields |
| Article number | 03215 |
| Volume | Issue number | 108 | 3 |
| Number of pages | 22 |
| Organisations |
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| Abstract | A search for the charged-lepton-flavor-violating process 𝑍→𝑒𝜇 is presented, using 139 fb−1 of √𝑠 = 13 TeV 𝑝𝑝 collision data collected by the ATLAS experiment at the LHC. An excess in the 𝑒𝜇 invariant mass spectrum near the 𝑍 boson mass would be a striking signature of new physics. No excess is observed, and an upper limit ℬ(𝑍→𝑒𝜇) < 2.62 × 10−7 is placed on the branching fraction at 95% confidence level, which is the most stringent limit to date. |
| Document type | Article |
| Language | English |
| Published at | https://doi.org/10.1103/PhysRevD.108.032015 |
| Downloads |
PhysRevD.108.032015
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