CMS observes η → μ⁺μ⁻e⁺e⁻ for the first time and measures its branching fraction as (2.4 ± 0.8) × 10^{-6}.
Internal pair production associated with the emission of high-energy gamma rays
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
fields
hep-ex 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
Observation of the rare decay $\eta$ $\to$ $\mu^+\mu^-$e$^+$e$^-$
CMS observes η → μ⁺μ⁻e⁺e⁻ for the first time and measures its branching fraction as (2.4 ± 0.8) × 10^{-6}.