US EditionToponium: Observe Together the Heavier Elementary Particles
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The international collaboration that operates the ATLAS experiment in the CERN's Great Hadron Collider (LHC) has observed the toponium, a union of the heavier elementary particles, the top quark. In physics it is known as a quasi-linked state, a temporal union between particles that is unstable and has just disintegrated, as reported by the Higher Council of Scientific Research (CSIC). For decades this state was thought to be impossible to detec…
In spring 2025, the CMS experiment at the Large Hadron Collider in Geneva presented a spectacular observation that had previously been considered virtually impossible. An excess of slow-moving top quark-antiquark pairs near the production threshold indicates the existence of a short-lived bound state called toponium, a pair formation of a top quark and its antiparticle. For decades, this possibility was considered purely […] Source
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