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Related papers: Initial state fluctuations and final state correla…

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The measurement of particle correlations and event-by-event fluctuations of physical observables allows to study a large variety of properties of the matter produced in ultra relativistic heavy-ion collisions. We will present results for…

Nuclear Experiment · Physics 2019-08-13 Michael Weber

Initial fluctuations in hydrodynamic fields such as energy density or flow velocity give access to understanding initial state and equilibration physics as well as thermodynamic and transport properties. We provide evidence that the fluid…

High Energy Physics - Phenomenology · Physics 2015-06-22 Stefan Floerchinger , Urs Achim Wiedemann , Andrea Beraudo , Luca Del Zanna , Gabriele Inghirami , Valentina Rolando

Enhanced fluctuations and correlations have been observed in the phase transitions of many systems. Their appearance at the predicted QCD phase transition (especially near the expected critical point) may provide insight into the nature of…

Nuclear Experiment · Physics 2015-03-17 Terence J Tarnowsky

I present a brief discussion of the different approaches to the study initial state effects in heavy ion collisions in view of the recent results from Pb+Pb and p+p collisions at the LHC.

High Energy Physics - Phenomenology · Physics 2015-05-30 Javier L Albacete

Fluctuations of thermodynamic quantities are fundamental for the study of the QGP phase transition. Among several observables calculated on an event-by-event basis, the different measures of the charge and mean transverse momentum…

Nuclear Experiment · Physics 2019-08-14 Panos Christakoglou

In this letter we propose for the first time to map the heavy-ion collisions at ultra-relativistic energies, similar to the maps of the cosmic microwave background radiation, using fluctuations of energy density and temperature in small…

Nuclear Theory · Physics 2020-09-08 Sumit Basu , Rupa Chatterjee , Basanta K. Nandi , Tapan K. Nayak

Initial geometrical distribution and fluctuation can affect the collective expansion in relativistic heavy-ion collisions. This effect may be more evident in small system (such as B + B) than in large one (Pb + Pb). This work presents the…

Nuclear Theory · Physics 2020-03-24 S. Zhang , Y. G. Ma , G. L. Ma , J. H. Chen , Q. Y. Shou , W. B. He , C. Zhong

Event-by-event fluctuations in the initial conditions for a hydrodynamical description of heavy-ion collisions are characterized. We propose a Bessel-Fourier decomposition with respect to the azimuthal angle, the radius in the transverse…

High Energy Physics - Phenomenology · Physics 2013-10-30 Stefan Floerchinger , Urs Achim Wiedemann

We develop a systematic framework for the study of the initial collision geometry fluctuations in relativistic heavy-ion collisions and investigate how they evolve through different stages of the fireball history and translate into final…

Nuclear Theory · Physics 2010-12-28 Guang-You Qin , Hannah Petersen , Steffen A. Bass , Berndt Müller

One of the ultimate goals of nuclear collision experiments at high energy is to map the phase diagram of strongly interacting matter. A very challenging task is the determination of the QCD phase structure including the search for critical…

Nuclear Experiment · Physics 2021-02-03 Anar Rustamov

Many simulations of relativistic heavy ion collisions involve the switching from relativistic hydrodynamics to kinetic particle transport. This switching entails the sampling of particles from the distribution of energy, momentum and…

High Energy Physics - Phenomenology · Physics 2020-09-16 Dmytro Oliinychenko , Shuzhe Shi , Volker Koch

We propose Elliptic Power and Power parameterizations for the probability distribution of initial state anisotropies in heavy-ion collisions. By assuming a linear eccentricity scaling, the new parameterizations can also be applied to…

Nuclear Theory · Physics 2015-03-04 Li Yan , Jean-Yves Ollitrault , Art M. Poskanzer

It is demonstrated using Monte Carlo simulation that in different nucleus$-$nucleus collision samples, the increase of the fluctuation of event factorial moments with decreasing phase space scale, called erraticity, is still dominated by…

High Energy Physics - Phenomenology · Physics 2009-11-07 Liu Fuming , Liao Hongbo , Liu Ming , Liu Feng , Liu Lianshou

Event-scale analysis techniques using correlation and fluctuation measures are applied to heavy-ion collision data with the goal of discovering, characterizing, and understanding deconfined quark matter. In service of these goals…

Nuclear Experiment · Physics 2007-05-23 J. G. Reid

The talk is a brief overview of what we recently learned about excited hadronic matter from heavy ion collisions. The central issue is that the systems produced do exhibit macroscopic behavior, it flows and we start getting some idea about…

High Energy Physics - Phenomenology · Physics 2017-08-23 E. V. Shuryak

We discuss several possible caveats which arise with the interpretation of measurements of fluctuations in heavy ion collisions. We especially focus on the ratios of particle yields, which has been advocated as a possible signature of a…

Nuclear Theory · Physics 2011-08-04 Michael Hauer , Sascha Vogel

This contribution contains a summary of the Krakow meeting on Soft Physics and Fluctuations. It emphasizes both the experimental and the theoretical investigations on correlations/fluctuations and intermittency in multi-particle processes…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Peschanski

Fluctuations in the initial conditions for relativistic heavy ion collisions are proving to be crucial to understanding final state flow and jet quenching observables. The initial geometry has been parametrized in terms of moments in the…

Nuclear Experiment · Physics 2011-05-05 James L. Nagle , Michael P. McCumber

We argue that the event-by-event fluctuation of the proton number is a meaningful and promising observable for the purpose of detecting the QCD critical end-point in heavy-ion collision experiments. The long range fluctuation of the order…

High Energy Physics - Phenomenology · Physics 2009-11-10 Y. Hatta , M. A. Stephanov

Multiplicity fluctuations are one of the most crucial observables in the Beam Energy Scan program of the Relativistic Heavy Ion Collider. It is understood that they can be utilized to probe the whereabouts of the critical point on the phase…

Nuclear Theory · Physics 2020-02-12 Hong-Hao Ma , Dan Wen , Kai Lin , Wei-Liang Qian , Bin Wang , Yogiro Hama , Takeshi Kodama