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Related papers: Single-Event Handbury-Brown-Twiss Interferometry

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A set of different equations of state is implemented in the molecular dynamics part of a non-equilibrium transport simulation (UrQMD) of heavy-ion collisions. It is shown how different flow observables are affected by the density dependence…

Event-by-event mean transverse momentum fluctuations ($\langle p_\mathrm{T}\rangle$) serve as a sensitive probe of initial state overlap geometry and energy density fluctuations in relativistic heavy-ion collisions. We present a systematic…

Nuclear Theory · Physics 2025-02-14 Liuyao Zhang , Jinhui Chen , Chunjian Zhang

Event-by-event fluctuations of multiplicity and transverse momentum of charged hadrons produced in heavy-ion collisions at FAIR energies, 10A, 20A, 30A and 40A GeV are studied in the framework of relativistic transport model, URQMD.…

High Energy Physics - Phenomenology · Physics 2023-12-12 Bushra Ali , Shakeel Ahmad , A. Ahmad

We look for signals of criticality in multifragment production in heavy-ion collisions using model-independent universal fluctuations theory. The phenomenon is studied as a function of system size, bombarding energy, and impact parameter in…

Some characteristics of midvelocity emissions in semiperipheral heavy-ion collisions at Fermi energies are discussed in the framework of a multifragmenting scenario. We report on binary dissipative collisions of 93Nb + 93Nb at 38AMeV in…

Nuclear Experiment · Physics 2009-05-29 G. Casini , S. Piantelli , P. R. Maurenzig , A. Olmi , A. S. Botvina

Heavy-ion collisions at relativistic energies probe matter at extreme conditions of temperatures and energy densities. The study of event-by-event fluctuations of experimental observables is crucial to probe the QCD phase transition, locate…

Nuclear Experiment · Physics 2020-12-30 Tapan K. Nayak

Stellar intensity interferometry consists in measuring the correlation of the light intensity fluctuations at two telescopes observing the same star. The amplitude of the correlation is directly related to the luminosity distribution of the…

Instrumentation and Methods for Astrophysics · Physics 2025-10-27 William Guerin , Mathilde Hugbart , Sarah Tolila , Nolan Matthews , Olivier Lai , Jean-Pierre Rivet , G. Labeyrie , Robin Kaiser

Multiplicity fluctuations in the forward hemisphere were studied for positively, negatively and all charged hadrons produced in central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV. The multiplicity distributions and their scaled…

Nuclear Experiment · Physics 2008-11-26 Benjamin Lungwitz

Recent measurements of event-by-event elliptic flow in Au+Au collisions at sqrt(sNN) = 200 GeV exhibit large relative fluctuations of about 40~50%. The data are well described by fluctuations in the shape of the initial collision region, as…

Nuclear Experiment · Physics 2007-05-23 Steven Manly

The number of particles detected in a nucleus-nucleus collision strongly depends on the impact parameter of the collision. Therefore, multiplicity fluctuations, as well as rapidity correlations of multiplicities, are dominated by impact…

In heavy-ion collisions, the initial collision geometry and its fluctuations drive the collective expansion of final-state hadrons in the transverse plane. However, longitudinal fluctuations induce event-plane twist and flow magnitude…

Nuclear Theory · Physics 2026-01-07 Gaoguo Yan , Maowu Nie , Zhenyu Chen , Li Yi , Jiangyong Jia

Heavy ion collisions at RHIC are well described by the (nearly ideal) hydrodynamics for average events. In the present paper we study initial state fluctuations appearing on event-by-event basis, and the propagation of perturbations induced…

Nuclear Theory · Physics 2013-05-29 Pilar Staig , Edward Shuryak

Correlations and fluctuations (the latter are directly related to the 2-particle correlations) is one of the important directions in analysis of heavy ion collisions. At the current stage of RHIC exploration, when the details matter,…

Nuclear Experiment · Physics 2015-06-26 Sergei A. Voloshin

Two-particle Hanbury-Brown-Twiss (HBT) interferometry is an important probe for understanding the space-time structure of particle emission sources in high energy heavy ion collisions. We present the comparative studies of HBT radii in…

Nuclear Experiment · Physics 2018-07-17 Debasish Das

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

Results for correlations and fluctuations presented at Quark Matter 2002 are summarized. These results include Hanbury-Brown Twiss interferometry of a wide variety of species, large scale fluctuations and correlations in $p_t$ and…

Nuclear Theory · Physics 2014-11-18 Scott Pratt

Recent results on event-by-event mean transverse momentum, $\mpt$, fluctuations in ultra-relativistic heavy ion collisions are briefly reviewed. We conclude that the observed fluctuations are in a rough agreement with that expected for the…

Nuclear Theory · Physics 2007-05-23 Sergei A. Voloshin

Event-by-event fluctuations of the chemical composition of the hadronic final state of relativistic heavy-ion collisions carry valuable information on the properties of strongly interacting matter produced in the collisions. However, in…

Nuclear Theory · Physics 2011-06-06 M. Gazdzicki , K. Grebieszkow , M. Mackowiak , St. Mrowczynski

In the late stage of the evolution of a pion system in high-energy heavy-ion collisions when pions undergo multiple scatterings, the quantum transport of the interfering pair of identical pions plays an important role in determining the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Li-Li Yu , Wei-Ning Zhang , Cheuk-Yin Wong

In heavy ion collisions particle distributions fluctuate from event to event. It is interesting to study local fluctuations of a specific particle specie, e.g. baryons, in the transverse plane. Fluctuations of the harmonic flow provide an…

Nuclear Theory · Physics 2026-01-16 Piotr Bozek