Hot and Dense Nuclear Matter - Department of Physics and Astronomy

The “Flow” Is Large
• Value of v 2 in
dn/dφ ~ 1 + 2 v 2 cos (2 φ) + ..
saturates at ~ 0.2
• Hydrodynamic calculations
show this collective flow is
– characteristic of
a strongly interacting
state of matter with
very low viscosity
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– established in the
earliest (geometrically
asymmetric) stage
of the collision
– The flow is as strong as it
can be
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Hot and Dense Nuclear matter 29