Speaker
Mathis Habich
(University of Colorado Boulder)
Description
We study the temperature profile, pion spectra, and HBT radii in central, symmetric, and boost-invariant nuclear collisions, using a super hybrid model for heavy-ion collisions (SONIC), combining pre-equilibrium flow with viscous hydrodynamics and late-stage hadronic rescatterings. In particular, we simulate $\mbox{Pb+Pb}$ collisions at $\sqrt{s}=2.76$ TeV, $\mbox{Au+Au}$, $\mbox{Cu+Cu}$, $\mbox{Al+Al}$, and $\mbox{C+C}$ collisions at $\sqrt{s}=200$ GeV, and $\mbox{Au+Au}$ and $\mbox{Cu+Cu}$ collisions at $\sqrt{s}=62.4$ GeV. We find that $\mbox{SONIC}$ provides a good match to the pion spectra and HBT radii for all collision systems and energies, confirming earlier work that a combination of pre-equilibrium flow, viscosity, and QCD equation of state can resolve the so-called HBT puzzle. For reference, we also show $\mbox{p+p}$ collisions at $\sqrt{s}=7$ TeV. We make tabulated data for the 2+1 dimensional temperature evolution of all systems publicly available for the use in future jet energy loss or similar studies.
| On behalf of collaboration: | NONE |
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Primary author
Mathis Habich
(University of Colorado Boulder)
Co-authors
Jamie Nagle
(University of Colorado Boulder)
Paul Romatschke
(University of Colorado Boulder)
