Fundamental particles produced in the Large Hadron Collider are forming a strange vortex of spins that physicists cannot explain.
Z bosons created in proton collisions exhibit an unexpected spin configuration that circles around the beam axis. This vortex-like pattern was discovered using a new technique called Mirror Quantum Tomography on ATLAS data. Standard particle models did not predict this collective spinning behavior in high-energy collisions. The researchers involved have stated that the origin of this phenomenon is currently unknown. This finding suggests there is a missing piece in our understanding of how matter behaves at the most basic level. It opens up a new mystery that could lead to a deeper layer of subatomic physics.
Mirror Quantum Tomography Finds Unexpected Polarization Phenomena in Z Boson Production in pp Collisions at the LHC
arXiv · 2605.03254
The ATLAS, CMS and LHCb collaborations have reported data for the inclusive production of lepton pairs with invariant mass 80-100 GeV in pp collisions. We find the ATLAS data from at $\sqrt{s}$ =8 TeV shows an unexpected vortex-like configuration of Z boson spins circulating around the beam axis. Associated with this structure is a local maximum of the entropy of the Z-boson polarization density matrix extracted using quantum tomography. Data from CMS and LHCb at $\sqrt{s}=13$ TeV are broadly co