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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

Two-particle correlations have been used to study property of a produced medium called Quark-Gluon Plasma (QGP) in relativistic heavy-ion collisions, and a long-range correlation among produced particles has been considered as a strong…

核理论 · 物理学 2021-08-24 Junlee Kim , Eun-Joo Kim , SuJeong Ji , SangHoon Lim

In AA collisions fusion and percolation of colour strings is studied at fixed rapidity $y$. Distribution of strings in rapidity is obtained from the observed rapidity spectra in pp collisions. For $y$-dependence of multiplicities in Au-Au…

高能物理 - 唯象学 · 物理学 2008-11-26 M. A. Braun , C. Pajares

String Fusion Model Code results for Pb--Pb central collisions at SPS energies including the string fusion interaction mechanism are compared to the last experimental data. Predictions for RHIC energies are also presented. On the other…

高能物理 - 唯象学 · 物理学 2008-11-26 E. G. Ferreiro , C. Pajares

Spin effects in strong interaction high energy processes are subtle phenomena which involve both short and long distance physics and test perturbative and non perturbative aspects of QCD. Moreover, depending on quantities like interferences…

高能物理 - 唯象学 · 物理学 2008-11-26 Mauro Anselmino

Spontaneous particle-pair formation is a fundamental phenomenon in nature. It can, for example, appear when the potential energy between two particles increases with separation, as if they were connected by a tense string. Beyond a critical…

The effects of purely elastic collisions on the dynamics of heavy inertial particles is investigated in a three-dimensional random incompressible flow. It is shown that the statistical properties of inter-particle separations and relative…

流体动力学 · 物理学 2015-06-12 Jeremie Bec , Stefano Musacchio , Samriddhi Sankar Ray

The relative effects of variation of the fine structure constant alpha=e^2/hc and dimensionless strong interaction parameter m_q/Lambda_{QCD} are enhanced 5-6 orders of magnitude in very narrow ultraviolet transition between the ground and…

原子物理 · 物理学 2011-11-23 V. V. Flambaum

Ultra-long range angular correlations have been recently reported by the ALICE collaboration in pp collisions at $\sqrt{s}=13$ TeV below ${\rm d}N_{\rm ch}/{\rm d}\eta=7$. The measurements have been performed as a function of the…

高能物理 - 唯象学 · 物理学 2025-12-11 Antonio Ortiz , Dushmanta Sahu , Gyula Bencedi

The energy and centrality dependences of charged particle pseudorapidity density in relativistic nuclear collisions were studied using a hadron and string cascade model, JPCIAE. Both the relativistic $p+\bar p$ experimental data and the…

核理论 · 物理学 2018-01-17 Ben-Hao Sa , A. Bonasera , Xu Cai , An Tai , Dai-Mei Zhou

In models for hadron collisions based on string hadronization, the strings are usually treated as independent, allowing no interaction between the confined colour fields. In studies of nucleus collisions it has been suggested that strings…

高能物理 - 唯象学 · 物理学 2015-02-16 Christian Bierlich , Gösta Gustafson , Leif Lönnblad , Andrey Tarasov

The recently proposed two families of strongly intensive measures of fluctuations and correlations are studied within Hadron-String-Dynamics (HSD) transport approach to nucleus-nucleus collisions. We consider the measures $\Delta^{K\pi}$…

核理论 · 物理学 2015-06-05 V. V. Begun , V. P. Konchakovski , M. I. Gorenstein , E. L. Bratkovskaya

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

The $\phi$ meson productions in $Au+Au$ and/or $Pb+Pb$ collisions at AGS, SPS, RHIC, and LHC energies have been studied systematically with a hadron and string cascade model LUCIAE. After considering the energy dependence of the model…

核理论 · 物理学 2014-11-18 Ben-Hao Sa , Zhong-Qi Wang , Xu Cai , Dai-Mei Zhou , C. Kobdaj , Yu-Peng Yan

The inclusive density of charged secondaries produced in high energy heavy ion collisions are calculated in the framework of multiple scattering theory and quark-gluon string model. The obtained results are in agreement with the data only…

高能物理 - 唯象学 · 物理学 2007-05-23 J. Dias de Deus , Yu. M. Shabelski , R. Ugoccioni

In high-energy heavy-ion collisions, structures in the initial collision zone are a matter of intense investigation, both from theory and experimental points of view. A large number of models have been developed to represent the initial…

核理论 · 物理学 2021-04-02 Shreyasi Acharya , Subhasis Chattopadhyay

Finite-size impurities suspended in incompressible flows distribute inhomogeneously, leading to a drastic enhancement of collisions. A description of the dynamics in the full position-velocity phase space is essential to understand the…

混沌动力学 · 物理学 2009-11-10 J. Bec , A. Celani , M. Cencini , S. Musacchio

Anomalous centrality evolution of two-particle angular correlations observed in Au-Au collisions at $\sqrt{s_{NN}} = 62$ and 200 GeV and the onset of ridge structures are considered in the model of interacting quark-gluon strings. We assume…

高能物理 - 唯象学 · 物理学 2015-02-12 Grigory Feofilov , Igor Altsybeev , Olga Kochebina

Multi-hadronic events produced in e+e- collisions provide an excellent laboratory to study QCD, the theory of strong interactions, and in particular to determine the strong coupling parameter alpha_s and demonstrate its predicted behavior…

高能物理 - 实验 · 物理学 2017-08-23 T. Wengler

A simple cellular model for the description of the long-range multiplicity and $p_t$ correlations in high-energy nuclear collisions originating from the string fusion model is proposed. Three versions of the model: without fusion, with…

高能物理 - 唯象学 · 物理学 2007-05-23 V. V. Vechernin , R. S. Kolevatov