CMS collaboration:
https://arxiv.org/abs/2606.20558
arXiv.org
Observation of electroweak production of pairs of Z bosons in...
The first evidence of electroweak (EW) production of pairs of Z bosons in association with two jets (jj) in the final state ZZjj $\to$ $\ell\ellνν$jj, where $\ell$ = e, $μ$, is reported by...

June 19, 2026 321 1 2