6–13 Jul 2022
Bologna, Italy
Europe/Rome timezone

Quantum SMEFT tomography: top quark pair production at the LHC

8 Jul 2022, 16:00
15m
Room 8 (Blu)

Room 8 (Blu)

Parallel Talk Top quark and EW Physics Top quark and EW Physics

Speaker

Dr Luca Mantani (DAMTP, University of Cambridge)

Description

Quantum information observables, such as entanglement measures, provide a powerful way to characterize the properties of quantum states. In this talk, I propose to use them to probe the structure of fundamental interactions and to search for new physics at high energy.
Inspired by recent proposals to measure entanglement of top quark pairs produced at the LHC, I examine how higher-dimensional operators in the framework of the SMEFT modify the Standard Model expectations. The focus is put on two regions of interest in the phase space where the Standard Model produces maximally entangled states: at threshold and in the high-energy limit. A non-trivial pattern of effects is unveiled and in general, it is found that higher-dimensional effects lower the entanglement predicted in the Standard Model.

In-person participation Yes

Primary authors

Dr Eric Madge (Weizmann Institute of Science) Dr Luca Mantani (DAMTP, University of Cambridge) Prof. Fabio Maltoni (UCLouvain and University of Bologna) Dr Rafael Aoude (UCLouvain)

Presentation materials