Communications of the ACM
Particles of Light May Create Fluid Flow, Data-Theory Comparison Suggests
The “elliptic flow” pattern was one of the earliest hints that particle collisions at the Relativistic Heavy Ion Collider could create a quark-gluon plasma.
Credit: Brookhaven National Laboratory
A computational analysis by scientists at the U.S. Department of Energy's Brookhaven National Laboratory and Wayne State University supports the idea that photons colliding with heavy ions can create a fluid of “strongly interacting” particles.
The researchers found calculations defining such a scheme correlate with data collected by the ATLAS detector at Europe's Large Hadron Collider (LHC).
The calculations are based on the hydrodynamic particle flow observed in head-on collisions of various types of ions at the LHC and the Brookhaven Lab's Relativistic Heavy Ion Collider.
Said Brookhaven Lab's Bjoern Schenke, "For these low energy photon-lead collisions, it is important to run a full 3D hydrodynamic model (which is more computationally demanding) because the particle distribution changes more rapidly as you go out in the longitudinal direction."
From Brookhaven National Laboratory
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