Fudan Study Maps Quark-Gluon Plasma Acceleration Across 3.5 GeV-2.76 TeV Collisions
Updated
Updated · BIOENGINEER.ORG · Aug 1
Fudan Study Maps Quark-Gluon Plasma Acceleration Across 3.5 GeV-2.76 TeV Collisions
3 articles · Updated · BIOENGINEER.ORG · Aug 1
Summary
Simulations spanning 3.5 GeV to 2.76 TeV produced the most detailed map yet of fluid acceleration inside quark-gluon plasma created in heavy-ion collisions, highlighting a dynamical feature long overshadowed by vorticity.
Several-hundred-MeV proper acceleration appears strongest at the fireball’s outer edge, where steep pressure gradients and lower enthalpy combine to drive violent outward expansion.
Roughly 500 MeV deceleration signals emerge at lower collision energies from nuclear stopping, while ultra-relativistic collisions generate sharper acceleration pulses as the nuclei pass through the plasma more quickly.
The study found the most extreme acceleration changes little with collision geometry, suggesting the fireball surface structure matters more than how head-on the nuclei collide.
Researchers say acceleration could become a new axis in the QCD phase diagram and leave measurable signatures in particle emission and hyperon spin polarization, though the current work is still transport-model based.