Testing Hydrodynamic Descriptions of of p+p Collisions at \sqrt{s}=7 TeV

Understand

In high energy collisions of heavy-ions, experimental findings of collective flow are customarily associated with the presence of a thermalized medium expanding according to the laws of hydrodynamics.

• Recently, the ATLAS, CMS and ALICE experiments found signals of the same type and magnitude in ultrarelativistic proton-proton collisions.
• In this study, the state-of-the-art hydrodynamic model SONIC is used to simulate the systems created in p+p collisions.
• By varying the size of the second-order transport coefficients, the range of applicability of hydrodynamics itself to the systems created in p+p collisions is quantified.