Asymmetric longitudinal flow decorrelations in proton-nucleus collisions

Understand

We perform the first study on asymmetric longitudinal decorrelations of elliptic, triangular and quadrangular flows in proton-nucleus collisions at the LHC and RHIC energies.

• To measure the longitudinal flow decorrelations for asymmetric collision systems, we propose a new set of rapidity-asymmetric flow decorrelation functions.
• Our event-by-event hydrodynamic calculations show that the flow decorrelations in proton-going direction are larger than those in nucleus-going direction.
• We also find that proton-nucleus collisions at RHIC have larger longitudinal flow decorrelation effects than those at the LHC.