中文
相关论文

相关论文: Influence of Impact Parameter Fluctuations on Tran…

200 篇论文

It is demonstrated that in low multiplicity sample, the increase of the fluctuation of event-factorial-moments with the diminishing of phase space scale, called ``erraticity'', are dominated by the statistical fluctuations. The erraticity…

高能物理 - 唯象学 · 物理学 2007-05-23 Fu Jinghua , Wu Yuanfang , Liu Lianshou

The PHENIX Experiment at the Relativistic Heavy Ion Collider has made measurements of event-by-event fluctuations in the charged particle multiplicity as a function of collision energy, centrality, collision species, and transverse momentum…

核实验 · 物理学 2007-05-23 Jeffery T. Mitchell

We present the first measurement of fluctuations from event to event in the production of strange particles in collisions of heavy nuclei. The ratio of charged kaons to charged pions is determined for individual central Pb+Pb collisions.…

高能物理 - 实验 · 物理学 2008-11-26 Afanasiev , NA49 collaboration

Color fluctuations in hadron-hadron collisions are responsible for the presence of inelastic diffraction and lead to distinctive differences between the Gribov picture of high energy scattering and the low energy Glauber picture. We find…

高能物理 - 唯象学 · 物理学 2013-05-14 M. Alvioli , M. Strikman

We present results for two-particle transverse momentum correlations, <dpt,i dpt,j>, as a function of event centrality for Au+Au collisions at sqrt(sNN) = 20, 62, 130, and 200 GeV at the Relativistic Heavy Ion Collider. We observe…

核实验 · 物理学 2012-08-27 STAR Collaboration

A brief history of the study of fluctuations in high energy nuclear collisions at the CERN SPS performed by NA49 is presented. The ideas and the corresponding experimental data on fluctuations are discussed from the point of view of their…

核实验 · 物理学 2009-11-11 Marek Gazdzicki

Measurements of transverse momentum ($p_{\rm T}$) and pseudorapidity ($\eta$) dependent flow vector fluctuations in p$-$Pb collisions at $\sqrt{s_{_{\rm NN}}} = 5.02$ TeV at the CERN Large Hadron Collider are presented. By studying…

核实验 · 物理学 2026-02-12 ALICE Collaboration

Multiplicity distributions of charged particles and their event-by-event fluctuations have been compiled for relativistic heavy-ion collisions from the available experimental data at Brookhaven National Laboratory and CERN and also by the…

核实验 · 物理学 2016-06-20 Maitreyee Mukherjee , Sumit Basu , Subikash Choudhury , Tapan K. Nayak

Strong modification of event-by-event fluctuations in global observables was proposed by several authors as an indicator of the phase transition in system evolution. We report the results of the analysis of STAR TPC data on the charged…

核实验 · 物理学 2019-08-14 Sergei A. Voloshin

The multiplicity fluctuations in A+A collisions at SPS and RHIC energies are studied within the HSD transport approach. We find a dominant role of the fluctuations in the nucleon participant number for the final fluctuations. In order to…

核理论 · 物理学 2014-11-20 V. P. Konchakovski , M. Hauer , M. I. Gorenstein , E. L. Bratkovskaya

In the recent years the NA49 experiment has collected data on Pb+Pb collisions at beam energies between 20 to 158 AGeV with the objective to cover the critical region of energy densities where the expected phase transition to a deconfined…

核实验 · 物理学 2009-11-10 C. Blume

Event-by-event fluctuations of the initial transverse density profile result in a collective flow pattern which also fluctuates event by event. We propose a number of new correlation observables to characterize these fluctuations and…

核实验 · 物理学 2012-06-18 Rajeev S. Bhalerao , Matthew Luzum , Jean-Yves Ollitrault

The multiplicity fluctuations of hadrons are studied within the statistical hadron-resonance gas model in the large volume limit. The role of quantum statistics and resonance decay effects are discussed. The microscopic correlator method is…

核理论 · 物理学 2008-11-26 Mark Gorenstein

In event by event hydrodynamic model, we have simulated 30-40\% Au+Au collisions at RHIC and computed the slope parameter from the invariant pion distribution. In each event, the slope parameter fluctuates azimuthally. Fourier expansion…

核理论 · 物理学 2015-07-20 A. K. Chaudhuri

We propose observables $v_0$ and $v_0(p_T)$ which quantify the relative fluctuations in the total transverse momentum at fixed multiplicity. We first study the factorization of the fixed multiplicity momentum dependent two particle…

核理论 · 物理学 2020-09-23 Björn Schenke , Chun Shen , Derek Teaney

The exploration of the QCD phase diagram is the most important task of present heavy ion experiments. In particular, we want to study the phase transition from hadronic to partonic matter and look for the critical point (CP) of strongly…

核实验 · 物理学 2019-08-14 Katarzyna Grebieszkow

It has been recently noticed that transverse momenta ($p_T$) distributions observed in high energy production processes exhibit remarkably universal scaling behavior. This is seen when they are in some suitable variable, replacing the usual…

高能物理 - 唯象学 · 物理学 2015-04-03 M. Rybczynski , Z. Wlodarczyk , G. Wilk

We investigate event-by-event fluctuations for ensembles with non-fixed multiplicity. Moments of event observable distributions, like total energy distribution, total transverse momentum distribution, etc, are shown to be related to the…

核理论 · 物理学 2016-08-15 M. Belkacem , Z. Aouissat , M. Bleicher , H. Stöcker , W. Greiner

A full understanding of transport in dense, interacting suspensions requires analysis frameworks sensitive to self and collective dynamics across all relevant spatial and temporal scales. Here we introduce a trajectory-free approach to…

软凝聚态物质 · 物理学 2025-12-22 Eleanor K. R. Mackay , Anna Drummond Young , Adam Carter , Sophie Marbach , Alice L. Thorneywork

We present measurements of net charge and transverse momentum fluctuations in Au + Au collisions at ?sNN = 20, 130, and 200 GeV reported in our QM 2004 poster using measures ?+-,dyn and <?pt,1 ?pt,2>. We observe the dynamical fluctuations…

核实验 · 物理学 2009-11-10 C. Pruneau