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We discuss the potential of light-nuclei measurement in heavy-ion collisions at intermediate energies for the search of the hypothetical QCD critical end-point. A previous proposal based on neutron density fluctuations has brought appealing…

Nuclear Theory · Physics 2020-10-28 Edward Shuryak , Juan M. Torres-Rincon

Event-by-event fluctuations and correlations between particles produced in relativistic nuclear collisions are studied. The fluctuations in positive, negative, total and net charge are closely related through correlations. In the event of a…

Nuclear Theory · Physics 2008-11-26 H. Heiselberg , A. D. Jackson

At energies of a few GeV per nucleon, nuclear collisions exhibit phenomena more complex than the individualistic nucleon interactions observed at much higher energies. From recent results on proton number fluctuations in Au + Au collisions…

Nuclear Theory · Physics 2024-08-16 Ali Bazgir , Maciej Rybczynski , Uzair A. Shah , Zbigniew Wlodarczyk

The critical behaviors of quark-hadron phase transition are explored by use of the Ising model adapted for hadron production. Various measures involving the fluctuations of the produced hadrons in bins of various sizes are examined with the…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. C. Hwa , Y. Wu

Large density fluctuations of conserved charges have been proposed as a promising signature for exploring the QCD critical point in heavy-ion collisions. These fluctuations are expected to exhibit a fractal or scale-invariant behavior,…

Nuclear Theory · Physics 2025-04-04 Rui Wang , Chengrui Qiu , Chuan-Shen Hu , Zhiming Li , Yuanfang Wu

Collective spin phenomena in the final states of heavy-ion collisions are typically understood to originate from vorticity and shear in the quark-gluon plasma. Here, we ask whether spin could already be present in the initial condition of…

Nuclear Theory · Physics 2025-10-01 Giuliano Giacalone , Enrico Speranza

An introduction to dynamical microscopic models of hadronic and nuclear interactions is presented. Special emphasis is put in the relation between multiparticle production and total cross-section contributions. In heavy ion collisions, some…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Capella

It is argued that the experimentally observed baryon stopping indicates a non-monotonous behaviour as a function of the incident energy of colliding nuclei. This can be quantified by a midrapidity reduced curvature of the net-proton…

Nuclear Theory · Physics 2015-05-27 Yu. B. Ivanov

We critically discuss recent suggestion to use long-range modes of charge (electric or baryon) fluctuations as a signal for the presence of Quark-Gluon Plasma at the early stages of a heavy ion collision. We evaluate the rate of diffusion…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. V. Shuryak , M. A. Stephanov

We review the phenomenology and theory of bulk observables in ultra-relativistic heavy-ion collisions, focussing on recent developments involving event-by-event fluctuations in the initial stages of a heavy ion collision, and how they…

Nuclear Theory · Physics 2014-06-03 Matthew Luzum , Hannah Petersen

I first sketch recent developments concerning the phase diagram of strongly interacting matter as a function of temperature and baryon density, obtained using a model for two-flavor QCD in which the interaction between quarks is modelled on…

High Energy Physics - Phenomenology · Physics 2007-05-23 Krishna Rajagopal

The exploration of the phase diagram of strongly interacting matter, particularly the study of the phase transition from hadronic to partonic matter and the search for a hypothetical critical endpoint of the first order transition line, is…

Nuclear Experiment · Physics 2019-08-14 Maja Mackowiak-Pawlowska

It is argued that the experimentally observed strong upward-bending of the logarithm of factorial moments versus that of phase space partition number in the higher-dimensional phase space of nucleus-nucleus collisions is due to the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Liu Lianshou , Hu Yuan , Deng Yue

We discuss various measures of net charge (conserved quantities) fluctuations proposed for the identification of critical phenomena in heavy ion collisions. We show the dynamical component of fluctuations of the net charge can be expressed…

Nuclear Experiment · Physics 2009-11-07 C. Pruneau , S. Gavin , S. Voloshin

We suggest that the fluctuations of strange hadron multiplicity could be sensitive to the equation of state and microscopic structure of strongly interacting matter created at the early stage of high energy nucleus-nucleus collisions. They…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. I. Gorenstein , M. Gazdzicki , O. S. Zozulya

The event-by-event charge fluctuation measurements are proposed to provide the signature of quark-gluon plasma (QGP) in heavy-ion collisions. Measure of dynamical charge fluctuations is expected to carry information of initial fractional…

Nuclear Theory · Physics 2023-12-07 Bhanu Sharma , P. K. Sahu

In addition to its importance in describing high-energy processes themselves, the dynamics of multiparticle production is part of the general field of non-linear phenomena and complex systems. Multiparticle dynamics is one of the rare…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Kittel

We discuss the physics underlying event-by-event fluctuations in relativistic heavy ion collisions. We will emphasize how the fluctuations of particle ratios can be utilized to explore the properties of the matter created in these…

Nuclear Theory · Physics 2016-09-08 V. Koch , M. Bleicher , S. Jeon

We discuss the physics underlying event-by-event fluctuations in relativistic heavy ion collisions. We will argue that the fluctuations of the ratio of positively over negatively charged particles may serve as a unique signature for the…

Nuclear Theory · Physics 2016-09-08 M. Doering , V. Koch

Higher order moments of net conserved charge fluctuations, in particular net baryon number and net electric charge, are sensitive thermodynamic observables that respond strongly to critical behavior in strong interaction matter. In order to…

High Energy Physics - Phenomenology · Physics 2013-07-16 Frithjof Karsch