ATLAS Observes Quasi-Bound State Near Top-Quark Production Threshold
The top quark is a unique particle that decays almost instantly after formation. However, under certain conditions, physicists predict that it can form a quasi-bound state with its anti-top quark, exchanging gluons before decaying independently. Researchers at the ATLAS Collaboration have observed this phenomenon in top-pair events produced near the production threshold. The production threshold … Read more