Speaker
Description
A TeV-scale muon collider is a promising successor to the LHC, offering unique opportunities to study rare processes and fundamental quantum phenomena. We investigate the prospects for observing quantum entanglement and Bell inequality violation in $H \to ZZ \to 4\ell$ events. The spin density matrix of the $ZZ$ system can be reconstructed from the decay kinematics of the charged leptons, enabling the evaluation of Bell operators and the characterization of quantum correlations between the two $Z$ bosons. Using Monte Carlo simulations, we show that the generalized CGLMP inequality can be maximally violated and that Bell inequality tests can be established with high statistical significance. These results demonstrate the potential of future muon colliders to probe quantum entanglement in the high-energy regime.
