Constraining new physics in entangled two-qubit systems: top-quark, tau-lepton and photon pairs

Abstract The measurement of quantum entanglement can provide a new and most sensitive probe to physics beyond the Standard Model. We use the concurrence of the top-quark pair spin states produced at colliders to constrain the magnetic dipole term in the coupling between top quark and gluons, that of...

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Bibliographic Details
Main Authors: Marco Fabbrichesi, Roberto Floreanini, Emidio Gabrielli
Format: Article
Language:English
Published: SpringerOpen 2023-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11307-2