Constraints on rapidity-dependent initial conditions from charged particle pseudorapidity densities and correlations at the LHC


Conference Paper

© 2017 Elsevier B.V. The initial three-dimensional entropy distribution of the quark-gluon plasma produced in relativistic heavy-ion collision is systematically studied using parametric initial conditions. We apply a cumulant generating function approach to parametrize the rapidity dependence of local entropy deposition and extend the boost-invariant initial condition model TRENTo to include longitudinal structure. Two different parametrizations are tested and their parameters optimized by comparing to centrality dependent charged particle pseudorapidity densities of p+Pb (5.02A TeV) and Pb+Pb (2.76A TeV) using Bayesian inference. Successful parametrizations are then selected based on their ability to describe two-particle psuedorapidity correlations. Finally, we predict the pseudorapidity dependent flows and event-plane decorrelations using the optimized initial conditions and a 3+1D hybrid hydro+micro model.

Full Text

Duke Authors

Cited Authors

  • Ke, W; Scott Moreland, J; Bernhard, JE; Bass, SA

Published Date

  • August 1, 2017

Published In

Volume / Issue

  • 289-290 /

Start / End Page

  • 483 - 486

International Standard Serial Number (ISSN)

  • 2405-6014

Digital Object Identifier (DOI)

  • 10.1016/j.nuclphysbps.2017.05.113

Citation Source

  • Scopus