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arXiv:2512.02104

Momentum entanglement at colliders: the $H \to WW,ZZ$ case

J. A. Aguilar-Saavedra

hep-phhep-exquant-phSubmitted Dec 1, 2025• Announced Dec 3, 2025• 0 citations
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Abstract

We address momentum entanglement in Higgs decays to weak boson pairs, $H \to WW,ZZ$, by discretising momentum space. The momenta of the two weak bosons are entangled, as well as the degrees of freedom in momentum and spin spaces. For $H \to ZZ$ in the four-lepton final state, we also estimate the statistical sensitivity of entanglement measures at the Large Hadron Collider and future upgrades. The discretisation method introduced here is broadly applicable, offering a framework for studies of momentum entanglement at the energy frontier.

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