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hep-ph2026
Probing anomalous couplings through spin correlations in top-quark pair production at the HL-LHC
Qi Bi, Zekun Li, Chuntao Liu +2
We propose a spin-density-matrix framework for probing anomalous interactions in top-quark pair production by exploiting the polarizations of the quark and the boson…
hep-ph2026
Collider Spin Tomography with Missing Neutrinos
Tengyu Ai, Qi Bi, Yuxin He +3
Missing neutrinos need not destroy collider spin tomography. We formulate the visible measurement under kinematic ambiguities arising from invisible particles as a coarse-grained p…