Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 80, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-019-7577-7
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Funding
- INFN post-doc fellowship within the national SIM project
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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 pT ranges. We also perform a comparison to Pb + Pb collisions pointing out that even if the collective flows have a similar magnitude the features of the matter created are different. By studying the correlation between collective flows and initial geometry, we find that the correlation decreases faster in small systems with the increase of n and centrality. In particular we show that the variance of vn/⟨vn⟩ has a quite different evolution with centrality for p + Pb, so their measurement could provide some further hint about the correctness of current modelling.
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