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The event-by-event fluctuations of identified particles in ultrarelativistic nucleus-nucleus collisions give information about the state of matter created in these collisions as well as the phase diagram of nuclear matter. In this…

核实验 · 物理学 2019-01-15 Alice Ohlson

The dynamical charge fluctuations have been studied in ultra-relativistic heavy-ion collisions by using hadronic model simulations, such as UrQMD and HIJING. The evolution of fluctuations has been calculated at different time steps during…

核理论 · 物理学 2015-03-03 Bhanu Sharma , Madan M. Aggarwal , Nihar Ranjan Sahoo , Tapan K. Nayak

The event-by-event fluctuations in heavy ion collisions carry information about the thermodynamic properties of the hadronic system at the time of freeze-out. By studying these fluctuations as a function of varying control parameters, such…

高能物理 - 唯象学 · 物理学 2007-05-23 Krishna Rajagopal

The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at $158 A$ GeV was studied by the NA49 collaboration. Centrality selected Pb+Pb collisions, semi-central C+C and…

核实验 · 物理学 2014-03-03 NA49 Collaboration

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

Fluctuations of conserved quantities, such as baryon, electric charge and strangeness number, are sensitive observables in heavy-ion collisions to search for the QCD phase transition and critical point. In this paper, we performed a…

核实验 · 物理学 2017-07-17 Chang Zhou , Ji Xu , Xiaofeng Luo , Feng Liu

An investigation of the critical behavior of strongly interacting QCD matter has been performed by analyzing fluctuation observables on event-by-event (ebe) basis measured in high-energy collision experiments. The fluctuation analysis is…

核实验 · 物理学 2022-10-11 Ashwini Kumar , Gauri Devi , B. K. Singh , Bushra Ali , Shakeel Ahmad

The scaling behavior of factorial moments of the differences in multiplicities between well separated bins in heavy-ion collisions is proposed as a probe of quark-hadron phase transition. The method takes into account some of the physical…

高能物理 - 唯象学 · 物理学 2009-10-30 R. C. Hwa

An analysis of the high-multiplicity triggered pp data at $\sqrt{s}$ = 13 TeV, obtained with the ALICE detector, is carried out to study the event-by-event fluctuations of mean transverse momentum ($\langle p_{\rm T}\rangle$) using a…

高能物理 - 实验 · 物理学 2024-10-10 Bushra Ali

In the present work we have analyzed the transverse momentum spectra of charged particles in high multiplicity ${\it pp}$ collisions at LHC energies $\sqrt s = $ 5.02 and 13 TeV published by the ALICE Collaboration using the Color String…

高能物理 - 唯象学 · 物理学 2024-04-26 Aditya Nath Mishra , Guy Paić , Carlos Pajares , Rolf P Scharenberg , Brijesh K Srivastava

We compute analytically the multi-particle eccentricities, \epsilon_m {2n}, for systems dominated by fluctuations, such as proton-nucleus collisions at the Large Hadron Collider. In particular, we derive a general relation for…

高能物理 - 唯象学 · 物理学 2015-08-25 Adam Bzdak , Vladimir Skokov

Comparing quantities to analyze charged fluctuations in heavy ion experiments the dispersion of the charges in a central rapidity box was found to be best suited. Various energies and different nuclear sizes are considered in an explicit…

高能物理 - 唯象学 · 物理学 2007-05-23 Fritz W. Bopp , Johannes Ranft

We present first data on event-by-event fluctuations in the average transverse momentum of charged particles produced in Pb+Pb collisions at the CERN SPS. This measurement provides previously unavailable information allowing sensitive tests…

高能物理 - 实验 · 物理学 2008-11-26 NA49 collaboration , H. Appelshauser

We present the next-to-leading-order event-by-event EKRT model predictions for the centrality dependence of the charged hadron multiplicity in the pseudorapidity interval $|\eta|\le 0.5$, and for the centrality dependence of the charged…

高能物理 - 唯象学 · 物理学 2018-05-03 K. J. Eskola , H. Niemi , R. Paatelainen , K. Tuominen

We consider the particle current in the asymmetric avalanche process on a ring. It is known to exhibit a transition from the intermittent to continuous flow at the critical density of particles. The exact expressions for the first two…

数学物理 · 物理学 2022-01-05 Anastasiia A. Trofimova , Alexander M. Povolotsky

The study of identified particle production as a function of event multiplicity is a key tool for understanding the similarities and differences among different colliding systems. Now for the first time, we can investigate how particle…

核实验 · 物理学 2021-09-28 Jacazio Nicolò

The ALICE detector at the LHC is used to study the properties of the Quark-Gluon Plasma produced in heavy-ion collisions. As a reference measurement, also the analysis of proton-proton (pp) collisions is very important. In the study…

核实验 · 物理学 2019-08-13 S. T. Heckel

The QCD critical point can be found in heavy ion collision experiments via the non-monotonic behavior of many fluctuation observables as a function of the collision energy. The event-by-event fluctuations of various particle multiplicities…

高能物理 - 唯象学 · 物理学 2011-03-23 Christiana Athanasiou , Krishna Rajagopal , Misha Stephanov

The QCD critical point can be found in heavy ion collision experiments via the non-monotonic behavior of many fluctuation observables as a function of the collision energy. The event-by-event fluctuations of various particle multiplicities…

高能物理 - 唯象学 · 物理学 2014-11-21 Christiana Athanasiou , Krishna Rajagopal , Misha Stephanov

Measurements of elliptic ($v_2$) and triangular ($v_3$) flow coefficients of $\pi^{\pm}$, K$^{\pm}$, p+$\rm \overline{p}$, K$^0_{\rm S}$, and $\Lambda + \overline{\Lambda}$ obtained with the scalar product method in Xe-Xe collisions at…

核实验 · 物理学 2022-01-14 ALICE Collaboration