Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD

Braun‐Munzinger, P.; Kalweit, A.; Redlich, K.; Stachel, J.

doi:10.1016/j.nuclphysa.2016.02.024

Cited by 7 publications

(5 citation statements)

References 67 publications

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“…Further analysis of particle yields at midrapidity, from central Pb-Pb collisions at √ s NN = 2.76 TeV, includes studies of net baryon number and strangeness susceptibilities as well as correlations between electric charge, strangeness and baryon number [205,206]. This work shows that the resulting fluctuations and correlations are consistent with lattice QCD results at a T c ∼ 155 MeV which corresponds to the (pseudo)critical temperature for the chiral crossover.…”

Section: Angular Correlations and Fluctuationssupporting

confidence: 59%

An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: Bulk properties and dynamical evolution

Foka

Janik

2016

Reviews in Physics

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The first collisions of lead nuclei, delivered by the CERN Large Hadron Collider (LHC) at the end of 2010, at a centreof-mass energy per nucleon pair √ s NN = 2.76 TeV, marked the beginning of a new era in ultra-relativistic heavy-ion physics. Following the Run 1 period, LHC also successfully delivered Pb-Pb collisions at the collision energy √ s NN = 5.02 TeV at the end of 2015. The study of the properties of the produced hot and dense strongly-interacting matter at these unprecedented energies is experimentally pursued by all four big LHC experiments, ALICE, ATLAS, CMS, and LHCb. This review presents selected experimental results from heavy-ion collisions delivered during the first three years of the LHC operation focusing on the bulk matter properties and the dynamical evolution of the created system. It also presents the first results from Run 2 heavy-ion data at the highest energy, as well as from the studies of the reference pp and p-Pb systems, which are an integral part of the heavy-ion programme. (Małgorzata Anna Janik) 1 In fact, it is a pseudo-critical temperature as 'lattice QCD' calculations indicate a crossover rather than a well defined phase transition [1,2].

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Section: Angular Correlations and Fluctuationssupporting

confidence: 59%

An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: Bulk properties and dynamical evolution

Foka

Janik

2016

Reviews in Physics

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“…[4][5][6][7] and references therein). This is in qualitative agreement with heavy-ion collision experiments [8]. However, at moderate and low collision energies, one encounters finite chemical potentials above this range.…”

Section: Introductionsupporting

confidence: 89%

Vector-Interaction-Enhanced Bag Model

et al. 2018

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A commonly applied quark matter model in astrophysics is the thermodynamic bag model (tdBAG). The original MIT bag model approximates the effect of quark confinement, but does not explicitly account for the breaking of chiral symmetry, an important property of Quantum Chromodynamics (QCD). It further ignores vector repulsion. The vector-interaction-enhanced bag model (vBag) improves the tdBAG approach by accounting for both dynamical chiral symmetry breaking and repulsive vector interactions. The latter is of particular importance to studies of dense matter in beta-equilibriumto explain the two solar mass maximum mass constraint for neutron stars. The model is motivated by analyses of QCD based Dyson-Schwinger equations (DSE), assuming a simple quark-quark contact interaction. Here, we focus on the study of hybrid neutron star properties resulting from the application of vBag and will discuss possible extensions.

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“…That way we are able to generalize the results of [14,15] and obtain new relations involving higher-rank moments. The relations involve identical in form combinations of moments for the particles produced from a source and for the final particles, similarly to the case of the rank-2 formulas from [14] Our results can be useful in the actively pursued investigations of mechanisms of particle production and eventby-event fluctuations, in particular in the search of the QCD phase transition at finite baryon density [11,[21][22][23][24][25][26][27][28][29][30][31]. An active search program is on the way by the NA61 Collaboration [32].…”

Section: Introductionmentioning

confidence: 97%

Statistical moments in superposition models and strongly intensive measures

Broniowski¹,

Olszewski²

2017

Phys. Rev. C

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First, we present a concise glossary of formulas for composition of standard, cumulant, factorial, and factorial cumulant moments in superposition (compound) models, where final particles are created via independent emission from a collection of sources. Explicit mathematical formulas for the composed moments are given to all orders. We discuss the composition laws for various types of moments via the generating-function methods and list the formulas for the unfolding of the unwanted fluctuations. Second, the technique is applied to the difference of the scaled multiplicities of two particle types. This allows us for a systematic derivation and a simple algebraic interpretation of the so-called strongly intensive fluctuation measures. With the help of the formalism we obtain several new strongly intensive measures involving higher-rank moments. The reviewed as well as the new results may be useful in investigations of mechanisms of particle production and event-byevent fluctuations in high-energy nuclear and hadronic collisions, and in particular in the search for signatures of the QCD phase transition at a finite baryon density. 25.75Gz, 25.75.Ld

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Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD

Cited by 7 publications

References 67 publications

An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: Bulk properties and dynamical evolution

An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: Bulk properties and dynamical evolution

Vector-Interaction-Enhanced Bag Model

Statistical moments in superposition models and strongly intensive measures

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