Transverse momentum-flow correlations in relativistic heavy-ion collisions

Understand

The correlation between the transverse momentum and the azimuthal asymmetry the flow is studied.

• A correlation coefficient is defined between the average transverse momentum of hadrons emitted in an event and the square of the elliptic or triangular flow coefficient.
• The hydrodynamic model predicts a positive correlation of the transverse momentum with the elliptic flow, and almost no correlation with the triangular flow in Pb-Pb collisions at LHC energies.
• In p-Pb collisions the new correlation observable is very sensitive to the mechanism of energy deposition in the first stage of the collision.