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Study of event by event fluctuations of thermodynamic quantities offer us more insight about the hot and dense matter created in the relativistic heavy ion collisions. In this review the recent results on these studies carried out by the…

Nuclear Experiment · Physics 2007-05-23 Supriya Das

We argue that two-step models, like String and Glasma models, with creation first of sources extended in rapidity that after locally decay into particles, lead to long range forward-backward correlations due to fluctuations in the number or…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Brogueira , J. Dias de Deus

Event by event fluctuations of particle multiplicities and their ratios are considered to be sensitive probes to the exotic phenomena in high energy heavy ion collisions like phase transtion or the occurence of critical point. These…

High Energy Physics - Phenomenology · Physics 2014-08-22 S. Ahmad , M. Farooq , S. Bashir , H. jahan , N. Ahmad , S. Chattopadhyay

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

Results are presented on event-by-event fluctuations in transverse momentum of charged particles, produced at forward rapidities in p+p, C+C, Si+Si and Pb+Pb collisions at 158 AGeV. Three different characteristics are discussed: the average…

High Energy Physics - Experiment · Physics 2013-05-29 The NA49 Collaboration

Forward-backward correlations of charged-particle multiplicities in symmetric bins in pseudorapidity (eta) are studied in order to gain insight into the underlying correlation structure of particle production in Au+Au collisions. The PHOBOS…

Nuclear Experiment · Physics 2008-11-26 B. B. Back , PHOBOS Collaboration

In this review, we systematically examine the principles and the practices of fluctuations such as the momentum and the charge fluctuations as applied to the heavy ion collisions. Main emphases are: (i) Fluctuations as signals of phase…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sangyong Jeon , Volker Koch

Forward-backward (FB) correlations are considered to be a powerful tool for the exploration of the early dynamics of hadronic interactions. The FB correlation functions can be constructed from different observables calculated event-by-event…

Nuclear Experiment · Physics 2018-04-20 Igor Altsybeev

The analysis of the statistical and dynamical fluctuations in nucleus-nucleus collisions on an event-by-event basis strongly relies on a comparison with specially constructed artificial events where statistical fluctuations and kinematical…

Nuclear Experiment · Physics 2007-05-23 Grazyna Odyniec

The event-by-event analysis of high energy nuclear collisions aims at revealing the richness of the underlying event structures and provide unique measures of dynamical fluctuations associated with QGP phase transition. The major challenge…

Nuclear Experiment · Physics 2008-11-26 Tapan K. Nayak

This is a study of the global fluctuations in power dissipation and light transmission through a liquid crystal just above the onset of electroconvection. The source of the fluctuations is found to be the creation and annihilation of…

Pattern Formation and Solitons · Physics 2009-11-10 Tibor Toth-Katona , John R. Cressman , Walter I. Goldburg , James T. Gleeson

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…

Nuclear Experiment · Physics 2019-01-15 Alice Ohlson

We present the preliminary results from our analysis of event by event fluctuation in K/pi ratio in Au+Au collision at \sqrt s_{NN} = 200 GeV and at 62.4 GeV using STAR detector at RHIC. Two different methods have been used to extract the…

Nuclear Experiment · Physics 2009-11-11 Supriya Das

Event-by-event hydrodynamics, with fluctuating initial conditions, has shown to nicely reproduce several features of experimentally observed quantities in high-energy nuclear collisions. Here we discuss how it may help to understand, in a…

High Energy Physics - Phenomenology · Physics 2015-03-17 Yogiro Hama , Rone Peterson G. Andrade , Frederique Grassi , Wei-Liang Qian

Dynamical fluctuations in global conserved quantities such as baryon number, strangeness, or charge may be observed near a QCD critical point. Results from new measurements of dynamical $K/\pi$ and $p/\pi$ ratio fluctuations are presented.…

Nuclear Experiment · Physics 2019-08-21 Terence J Tarnowsky

Event-by-event fluctuations of global observables in relativistic heavy-ion collisions are studied as probes for the QCD phase transition and as tools to search for critical phenomena near the phase boundary. Dynamical fluctuations in mean…

Nuclear Experiment · Physics 2015-06-22 Nihar Ranjan Sahoo

New measurements of short-range and long-range two-particle correlations, azimuthal anisotropy, and event-by-event fluctuations from the STAR experiment for sqrt{s_{NN}}= 130 and 200 GeV Au+Au collisions are summarized. Striking evidence is…

Nuclear Experiment · Physics 2019-08-14 R. L. Ray

We use the wounded nucleon model to study the forward-backward multiplicity fluctuations measured by the PHOBOS Collaboration in Au+Au collisions at sqrt(s_NN)=200 GeV. The enhancement of forward-backward fluctuations in Au+Au collisions…

High Energy Physics - Phenomenology · Physics 2010-04-14 Adam Bzdak , Krzysztof Wozniak

Event-by-event fluctuations in the multiplicities of charged particles and photons, and the total transverse energy in 158$\cdot A$ GeV Pb+Pb collisions are studied for a wide range of centralities. For narrow centrality bins the…

Nuclear Experiment · Physics 2011-07-18 M. M. Aggarwal

The forward-backward multiplicity correlation strength is calculated for arbitrary nucleus-nucleus collision in the framework of the wounded nucleon model. Discussion of our results in the context of the recent STAR data in Au+Au collisions…

High Energy Physics - Phenomenology · Physics 2009-09-02 Adam Bzdak