Study of collective anisotropies $v_2$ and $v_3$ and their fluctuations in $pA$ collisions at LHC within a relativistic transport approach

Understand

We have developed a relativistic transport approach at fixed $\eta/s(T)$ that incorporates initial space fluctuations generated by wounded quark model to study the hadron observables in 5.02 TeV p+Pb collisions.

• We find that our approach is able to correctly predict quite well several existing experimental measurements assuming a matter with $\eta/s=1/4\pi$, a result similar to previous studies within a viscous hydrodynamics approach.
• Besides, we further discuss the sensitivity of the results on both $\eta/s(T)$ and the smearing width.
• Our transport approach has the possibility to include in initial conditions the power law tail associated to minijet, and this improvement extends the agreement with the experimental data to higher $p_T$ ranges.