4.2 Article Proceedings Paper

Rapidity decorrelation from hydrodynamic fluctuations

Journal

NUCLEAR PHYSICS A
Volume 982, Issue -, Pages 339-342

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2018.08.012

Keywords

quark gluon plasma; relativistic fluctuating hydrodynamics; factorisation ratios; Legendre coefficients

Funding

  1. JSPS KAKENHI [JP18J22227, JP17H02900]

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We discuss rapidity decorrelation caused by hydrodynamic fluctuations in high-energy nuclear collisions at the LHC energy. We employ an integrated dynamical model which is a combination of the Monte Carlo version of Glauber model with extension to longitudinal direction for initial conditions, full three-dimensional relativistic fluctuating hydrodynamics for the space-time evolution of created matter in the intermediate stage and a hadronic cascade model in the late stage. We switch on and off the hydrodynamic fluctuations in the hydrodynamic stage to understand the effects of hydrodynamic fluctuations on factorisation ratios r(n)(eta(a)(p),eta(b)(p)). To understand the rapidity gap dependence of the factorisation ratio comprehensively, we analyse Legendre coefficients A(2)(k) and B-2(k).

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