Hydrodynamic approach to p-Pb

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• 作者：Piotr Bo偶ek^a ; ^b ; ^{piotr.bozek@ifj.edu.pl" class="auth_mail} ; Wojciech Broniowski^b ; ^c ; ^{wojciech.broniowski@ifj.edu.pl" class="auth_mail}
• 关键词：Heavy-ion collisions ; Proton-lead collisions ; Hydrodynamics ; Collective flow
• 刊名：Nuclear Physics A
• 出版年：June 2014
• 年：2014
• 卷：926
• 期：Complete
• 页码：16-23
• 全文大小：308 K

文摘

The formation and collective expansion of the fireball formed in ultrarelativistic p–A and d–A collisions is discussed. Predictions of the hydrodynamic model are compared to recent experimental results. The presence of strong final state interaction effects in the small dense systems is consistent with the observed azimuthal anisotropy of the flow and with the mass dependence of the average transverse momentum and of the elliptic flow. This raises the question of the mechanism explaining such a rapid build-up of the collective flow and the large degree of local equilibration needed to justify this scenario.