PPC 2022: XV International Conference on Interconnections between Particle Physics and Cosmology

Machine-Learning quantum entanglement with top quark pair production at the LHC

7 Jun 2022, 16:00

15m

Parallel

Speaker

Zhongtian Dong (University of Kansas)

Description

The top quark spin information is highly correlated with the final state lepton polarization, making the dileptonic $t\overline{t}$ events good candidates to study quantum entanglement at the LHC. The $t\overline{t}$ momentum reconstruction is a key ingredient to accurately assessing such measurements. We will be comparing the strengths and weaknesses of different top-quark momentum reconstruction methods. We will then discuss a necessary and sufficient condition to define entanglement for the dileptonic $t\overline{t}$ events, and compare the reconstructed entanglement information.

Presentation materials

PPC22.pdf