Fluid dynamical prediction of changed v1 flow at energies available at the CERN Large Hadron Collider

被引：57

作者：

Csernai, L. P. ^{[1
,2
,3
]}

Magas, V. K. ^{[4
]}

Stoecker, H. ^{[3
]}

Strottman, D. D. ^{[1
,3
]}

机构：

[1] Univ Bergen, Inst Phys & Technol, N-5007 Bergen, Norway

[2] Res Inst Particle & Nucl Phys, MTA KFKI, H-1525 Budapest, Hungary

[3] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

[4] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

来源：

PHYSICAL REVIEW C | 2011年 / 84卷 / 02期

关键词：

COLLISIONS; MODEL;

D O I：

10.1103/PhysRevC.84.024914

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Substantial collective flow is observed in collisions between lead nuclei at Large Hadron Collider (LHC) as evidenced by the azimuthal correlations in the transverse momentum distributions of the produced particles. Our calculations indicate that the global v(1)-flow, which at RHIC peaked at negative rapidities (named third flow component or antiflow), now at LHC is going to turn toward forward rapidities (to the same side and direction as the projectile residue). Potentially this can provide a sensitive barometer to estimate the pressure and transport properties of the quark-gluon plasma. Our calculations also take into account the initial state center-of-mass rapidity fluctuations, and demonstrate that these are crucial for v(1) simulations. In order to better study the transverse momentum flow dependence we suggest a new "symmetrized" v(1)(S)(p(t)) function, and we also propose a new method to disentangle global v(1) flow from the contribution generated by the random fluctuations in the initial state. This will enhance the possibilities of studying the collective Global v(1) flow both at the STAR Beam Energy Scan program and at LHC.

引用

页数：6

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