2010

The Mach cone signal and energy deposition scenarios in linearized hydrodynamics

Neufeld, R. B., Renk, Thorsten

Understand

Particle correlation measurements associated with a hard or semi-hard trigger in heavy-ion collisions may reflect Mach cone shockwaves excited in the bulk medium by partonic energy loss.

  • This is of great interest because, when compared with theory, such measurements can provide information on the transport properties of the medium.
  • Specifically, the formation of Mach cone shockwaves is sensitive to the viscosity and speed of sound, as well as the detailed nature of the jet medium interaction.
  • However, modeling the physics of shockwave excitation to obtain a meaningful comparison with the measured correlations is very challenging since the correlations arise from an interplay of perturbative as well as non-perturbative phenomena at different momentum scales.

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