Characterization of the quantum state of top quark pairs produced in proton-proton collisions at $\sqrt{s}$ = 13 TeV using the beam and helicity bases

CMS Collaboration

Measurements of the spin correlation coefficients in the beam basis are presented for top quark-antiquark ($\mathrm{t}\bar{\mathrm{t}}$) systems produced in proton-proton collisions at $\sq…