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相关论文: Fluctuations and Correlations in Nucleus-Nucleus C…

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We review recent results of net-proton multiplicity fluctuations from STAR experiment, aiming to locate the QCD critical point in high-energy nuclear collisions at RHIC. We show net-proton number cumulant and proton number factorial…

核实验 · 物理学 2026-04-15 Yu Zhang , Zhaohui Wang , Xiaofeng Luo , Nu Xu

We discuss the effects of initial collision geometry and centrality bin definition on correlation and fluctuation observables in nucleus-nucleus collisions. We focus on the forward-backward correlation coefficient recently measured by the…

核理论 · 物理学 2010-04-14 V. P. Konchakovski , M. Hauer , G Torrieri , M. I. Gorenstein , E. L. Bratkovskaya

We present a subset of experimental results on charge fluctuation from the heavy-ion collisions to search for phase transition and location of critical point in the QCD phase diagram. Measurements from the heavy-ion experiments at the SPS…

核实验 · 物理学 2017-01-24 D. K. Mishra , P. Garg , P. K. Netrakanti , L. M. Pant , A. K. Mohanty

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

The microscopic phasespace approach URQMD is used to investigate the stopping power and particle production in heavy systems at SPS and RHIC energies. This framework bridges with one model consistently the entire available range of energies…

An analysis of local fluctuations, or spikes, is performed for charged particles produced in central C-Cu collisions at 4.5 GeV/$c$/nucleon. The distributions of spike-centers and the maximum density distributions are investigated for…

高能物理 - 唯象学 · 物理学 2009-10-31 G. L. Gogiberidze , L. K. Gelovani , E. K. Sarkisyan

We present an analysis of proton number fluctuations in $\sqrt{s_{NN}}$ = 2.4 GeV Au+Au collisions measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI. With the help of extensive detector simulations done with IQMD…

核实验 · 物理学 2020-09-01 J. Adamczewski-Musch , O. Arnold , C. Behnke , A. Belounnas , A. Belyaev , J. C. Berger-Chen , J. Biernat , A. Blanco , C. Blume , M. B"ohmer , P. Bordalo , S. Chernenko , L. Chlad , C. Deveaux , J. Dreyer , A. Dybczak , E. Epple , L. Fabbietti , O. Fateev , P. Filip , P. Fonte , C. Franco , J. Friese , I. Fr"ohlich , T. Galatyuk , J. A. Garzon , R. Gernh"auser , M. Golubeva , R. Greifenhagen , F. Guber , M. Gumberidze , S. Harabasz , T. Heinz , T. Hennino , S. Hlavac , C. H"ohne , R. Holzmann , A. Ierusalimov , A. Ivashkin , B. K"ampfer , T. Karavicheva , B. Kardan , I. Koenig , W. Koenig , M. Kohls , B. W. Kolb , G. Korcyl , G. Kornakov , F. Kornas , R. Kotte , A. Kugler , T. Kunz , A. Kurepin , A. Kurilkin , P. Kurilkin , V. Ladygin , R. Lalik , K. Lapidus , A. Lebedev , L. Lopes , M. Lorenz , T. Mahmoud , L. Maier , A. Mangiarotti , J. Markert , T. Matulewicz , S. Maurus , V. Metag , J. Michel , D. M. Mihaylov , S. Morozov , C. M"untz , R. M"unzer , L. Naumann , K. Nowakowski , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , O. Petukhov , K. Piasecki , J. Pietraszko , W. Przygoda , S. Ramos , B. Ramstein , A. Reshetin , P. Rodriguez-Ramos , P. Rosier , A. Rost , A. Rustamov , A. Sadovsky , P. Salabura , T. Scheib , H. Schuldes , E. Schwab , F. Scozzi , F. Seck , P. Sellheim , I. Selyuzhenkov , J. Siebenson , L. Silva , Yu. G. Sobolev , S. Spataro , S. Spies , H. Str"obele , J. Stroth , P. Strzempek , C. Sturm , O. Svoboda , M. Szala , P. Tlusty , M. Traxler , H. Tsertos , E. Usenko , V. Wagner , C. Wendisch , M. G. Wiebusch , J. Wirth , Y. Zanevsky , P. Zumbruch

Strongly intensive measures $\Delta$ and $\Sigma$ are used to study event-by-event fluctuations of hadron multiplicities in nucleus-nucleus collisions. The effects of resonance decays are investigated within statistical model and…

核理论 · 物理学 2015-05-19 Viktor V. Begun , Mark I. Gorenstein , Katarzyna Grebieszkow

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

核实验 · 物理学 2013-05-29 The NA49 Collaboration , B. Lungwitz

Using a hadron and string cascade model, JPCIAE, we investigated the dependence of event-by-event charge fluctuation on the energy, centrality, window size, resonance decay, and the final state interaction for $Pb+Pb$ collisions at SPS and…

核理论 · 物理学 2009-11-07 Ben-Hao Sa , Xu Cai , Zong-Di Su , An Tai , Dai-Mei Zhou

We study the net-charge fluctuations, $D$-measure variable, in high energy heavy-ion collisions in heavy-ion jet interaction generator (HIJING), ultrarelativistic quantum molecular dynamics (UrQMD) and hadron resonance gas (HRG) models for…

核理论 · 物理学 2017-05-15 D. K. Mishra , P. K. Netrakanti , P. Garg

Event-by-event fluctuations in the multiplicities of charged particles and photons at SPS energies are discussed. Fluctuations are studied by controlling the centrality of the reaction and rapidity acceptance of the detectors. Results are…

核实验 · 物理学 2015-06-26 Bedangadas Mohanty

Nucleon correlations in the target and projectile nuclei are shown to reduce significantly the fluctuations in multiple nucleon-nucleon collisions, total multiplicity and transverse energy in relativistic heavy-ion collisions, in particular…

核理论 · 物理学 2016-09-08 Gordon Baym , B. Blättel , L. L. Frankfurt , H. Heiselberg , M. Strikman

In the framework of various Glauber-like models we compute several correlation observables in nuclear collisions at the SPS, RHIC, and LHC energies. We analyze fluctuations of the eccentricity of the fireball created in the collision, in…

核理论 · 物理学 2009-02-24 Maciej Rybczynski , Wojciech Broniowski , Piotr Bozek

Hadron-hadron collisions at high energies are investigated in the Ultra-relativistic-Quantum-Molecular-Dynamics approach (UrQMD). This microscopic transport model is designed to study pp, pA and A+A collisions. It describes the…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Bleicher , E. Zabrodin , C. Spieles , S. A. Bass , C. Ernst , S. Soff , L. Bravina , M. Belkacem , H. Weber , H. Stöcker , W. Greiner

Predictions on fluctuations of hadron production properties in central heavy ion collisions are presented. They are based on the Statistical Model of the Early Stage and extend previously published results by considering the strongly…

高能物理 - 唯象学 · 物理学 2016-09-21 R. V. Poberezhnyuk , M. I. Gorenstein , M. Gazdzicki

Event-by-event particle ratio fluctuations for simulated data sets of three different models named UrQMD, AMPT, and Pythia are studied using the fluctuation variable $\nu_{dyn}$. The simulated data sets produced in $pp$ collisions at four…

高能物理 - 唯象学 · 物理学 2023-11-01 Subhadeep Paul , Tumpa Biswas , Dipak Ghosh , Mehedi Kalam , Prabir Kr. Halder

Fluctuations in the statistical model of heavy ion collisions are studied. The role of statistics, relativity, constraints, decaying resonances and branching processes are investigated using this model. Also studied are thermodynamic…

核理论 · 物理学 2009-11-10 Aram Z. Mekjian

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…

核理论 · 物理学 2008-11-26 H. Heiselberg , A. D. Jackson

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