Abstract
In this paper we discuss recent results on soft particle production, correlations and flow in Pb-Pb collisions at p sNN = 2.76 TeV.
Highlights
The main goal of heavy ion collision studies at the LHC is the characterization of the Quark Gluon Plasma (QGP), the deconfined matter state created in such collisions
After reaching an approximate local thermalization, the system expands under the effect of pressure gradients
The study of the QGP entered a new phase of precision measurements at the LHC
Summary
The main goal of heavy ion collision studies at the LHC is the characterization of the Quark Gluon Plasma (QGP), the deconfined matter state created in such collisions. After reaching an approximate local thermalization, the system expands under the effect of pressure gradients This evolution can be described using (nearly) ideal hydrodynamics. The initial energy deposition from the incoming nuclei fluctuates event-by-event [1], generating a characteristic power spectrum for the vn coefficients. This poses stringent constraints on the nuclear wave function. The study of the QGP entered a new phase of precision measurements at the LHC As it will be discussed in the following, measurements on production and correlations of soft particles provide a way to study the dynamical evolution of the system, to measure its transport properties and to understand the interplay between highpT partons and the medium. Most of the results discussed i√nsNthNis=p2a.p7e6r have TeV, been obtained by the ALICE, in Pb–Pb collisions at ATLAS and CMS collaborations at the CERN LHC
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