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The researchers measured the spin correlations of top quark and antiquark pairs produced at the Large Hadron Collider (LHC).

The existence of an entangled state was confirmed with a significance of more than five standard deviations ( ), clearing the threshold for a formal "discovery".

Analysis was focused on a restricted phase space (close to the production threshold) where entanglement signals are strongest.

In physics contexts, "HD" or high-definition often refers to or high-resolution measurement techniques. This specific ATLAS experiment utilized:

This paper reports a landmark observation in particle physics:

Using the ATLAS detector's sophisticated tracking and calorimetry to reconstruct the decay of top quarks with extreme precision.

Entanglementhd Apr 2026

The researchers measured the spin correlations of top quark and antiquark pairs produced at the Large Hadron Collider (LHC).

The existence of an entangled state was confirmed with a significance of more than five standard deviations ( ), clearing the threshold for a formal "discovery". EntanglementHD

Analysis was focused on a restricted phase space (close to the production threshold) where entanglement signals are strongest. The researchers measured the spin correlations of top

In physics contexts, "HD" or high-definition often refers to or high-resolution measurement techniques. This specific ATLAS experiment utilized: EntanglementHD

This paper reports a landmark observation in particle physics:

Using the ATLAS detector's sophisticated tracking and calorimetry to reconstruct the decay of top quarks with extreme precision.