Quantum detection of new physics in top-quark pair production at the LHC
Fabio Maltoni, Claudio Severi, Simone Tentori, Eleni Vryonidou
Abstract
A bstract The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of new physics. To this aim, we study spin correlations of $$t\overline{t }$$ pairs originating from various intermediate resonances, and compare the discovery reach of quantum observables compared to classical ones. We find that they provide complementary information and, in several notable cases, also the additional leverage necessary to detect new effects.
Topics & Concepts
PhysicsLarge Hadron ColliderParticle physicsTop quarkPair productionPhysics beyond the Standard ModelNuclear physicsParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions