English

Entanglement and Bell inequalities violation in $H\to ZZ$ with anomalous coupling

High Energy Physics - Phenomenology 2024-05-28 v2 High Energy Physics - Theory Quantum Physics

Abstract

We discuss entanglement and violation of Bell-type inequalities for a system of two ZZ bosons produced in Higgs decays. We take into account beyond the Standard Model (anomalous) coupling between HH and daughter bosons but we limit ourselves to an overall scalar ZZZZ state (we exclude the possibility that HH contains a pseudo-scalar component). In particular we consider the case when each ZZ decays further into fermion-antifermion pair. We find that a ZZZZ state is entangled and violates the CGLMP inequality for all values of the (anomalous) coupling constant.

Keywords

Cite

@article{arxiv.2307.13496,
  title  = {Entanglement and Bell inequalities violation in $H\to ZZ$ with anomalous coupling},
  author = {Alexander Bernal and Paweł Caban and Jakub Rembieliński},
  journal= {arXiv preprint arXiv:2307.13496},
  year   = {2024}
}

Comments

12 pages, 6 figures, as published in EPJC