Charged Particle, Photon Multiplicity, and Transverse Energy Production in High-Energy Heavy-Ion Collisions

Sahoo, R.; Mishra, Aditya Nath; Behera, N. K.; Nandi, B. K.

doi:10.1155/2015/612390

Cited by 24 publications

(26 citation statements)

References 121 publications

(139 reference statements)

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“…Its measurement will show, whether densities needed for the creation of QGP are reached in the collisions at NICA. The transverse energy density, which is related to the internal pressure in the extremely dense matter produced in collisions of heavy-ions [3] will also be measured when the particle identification will be employed.…”

Section: The Mpd Experiments Physics Performance and Prospectsmentioning

confidence: 99%

The NICA Complex and the MPD experiment at JINR: status and physics potential

Kisiel

2022

EPJ Web Conf.

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The Multi-Purpose Detector is under construction at the Joint Institute for Nuclear Research in Dubna, as part of the NICA Accelerator Complex. The MPD Collaboration aims to study the phase diagram of QCD matter at maximum baryonic density, determine the nature of the phase transition between the deconfined and hadronic matter and search for the critical point. The combination of significant luminosity at NICA, collider geometry of the experiment and collision energies √SNN spanning the range of 4 to 11 GeV, where the transition from baryon to meson dominated matter is expected will allow MPD to provide unique insight into these questions. The status of the assembly of the detector in MPD Hall, as well as the progress in the production of MPD subdetectors will be reported on. The design physics performance of the detector will be discussed with the emphasis on the measurements in the strangeness sector. Tracking and particle identification procedures will enable precise determination of spectra of identified hadrons, including hyperons and hypernuclei, with the possibility of differential measurements and total yield extraction. The quality of directed and elliptic flow determination will be discussed, with comparison to model expectations. The sensitivity of event-by-event fluctuations to the nature of the phase transition and the presence of a critical point will be given. The femtoscopic analysis for charged pions and kaons has shown sensitivity to first order and cross-over phase transitions in EoS seen for the vHLLE model. All those studies will be put in context of addressing outstanding questions on the properties of the region of the QCD phase diagram probed by heavy-ion collisions in the NICA energy range.

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Section: The Mpd Experiments Physics Performance and Prospectsmentioning

confidence: 99%

The NICA Complex and the MPD experiment at JINR: status and physics potential

Kisiel

2022

EPJ Web Conf.

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“…As most of the transverse energy is carried by the pions, kaons and protons due to their abundance, the total transverse energy (E T ) can be approximated as [38][39][40],…”

Section: A Transverse Energy and Bjorken Energy Densitymentioning

confidence: 99%

Effect of nuclear density profile on the global properties in O+O collisions at the Large Hadron Collider using a multi-phase transport model

Behera,

Mallick,

Tripathy

et al. 2021

Preprint

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Oxygen ( 16 O) ions are planned to be injected at the Large Hadron Collider (LHC) in its next runs and a day of physics run is anticipated for O+O collisions at √ sNN = 7 TeV. As the system size of O+O collisions is in between those produced in pp and p+Pb collisions, the study of global properties in O+O collisions may provide a deeper insight into the heavy-ion-like behavior observed in small collision systems and its similarities/differences with larger system like Pb+Pb collisions.In the present work, we report the predictions for global properties in O+O collisions at √ sNN = 7 TeV using a multi-phase transport model (AMPT). We report the mid-rapidity charged particle multiplicity, transverse mass, Bjorken energy density, pseudorapidity distributions, speed of sound, transverse momentum (pT) spectra, the kinetic freeze-out parameters and pT-differential particle ratio as a function of collision centrality. Further, we have studied the transverse momentum dependent elliptic flow of charged particles. The results are shown for Woods-Saxon and harmonic oscillator nuclear density profiles incorporated inside oxygen nucleus. With the change of the density profile with harmonic oscillator from Woods-Saxon, a modification of average charged-particle multiplicity at most central collisions is seen. Bjorken energy density show a significant increase in most central collisions for harmonic oscillator density profile while other global properties show less dependence on the density profiles considered in this work.

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“…energy dependence of the multiplicity measured in head-on nucleus-nucleus collisions (solid symbols) is shown in Figure 1. We fit the head-on data by the "hybrid" fit function (solid line), similar to the successful hybrid fits considered by us earlier for the charged particle midrapidity density and the midrapidity transverse energy density [2].The motivation behind hybrid function is that the logarithmic dependence is considered to characterize the fragmentation source(s) while the power-law behaviour is believed to come from the gluon-gluon interactions [12]; for review, see [13]. In addition to the hybrid fit, we show the log 2 (s NN )-fit [3,4] the top RHIC energy (thin dashed line) and the power-law fit for the entire energy range (dasheddotted line); for the functional form, see [5].…”

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confidence: 95%

Revealing similarity in multihadron production in nuclear and particle collisions.

Mishra¹,

Sahoo²,

Sarkisyan³

et al. 2017

Proceedings of 7th International Conference on Physics and Astrophysics of Quark Gluon Plasma — PoS(ICPAQGP2015)

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Universality of multihadron production in AA and hadronic interactions is studied using collision energy and centrality dependencies of the measured charged particle mean multiplicity. The study uses the framework of an effective-energy approach combining the constituent quark picture and Landau relativistic hydrodynamics and relating hadronic and nuclear collisions. The energy dependence of the multiplicity and the pseudorapidity density of head-on AA collisions are well reproduced. The multiplicity centrality dependence reveals a new scaling between the measured and estimated pseudorapidity spectra. Using this scaling, called the energy balanced limiting fragmentation scaling, all centrality spectra are described. This elucidates the difference in centrality dependence of multiplicity at RHIC and LHC and also the RHIC midrapidity density vs multiplicity. A new regime in AA collisions is indicated at ∼1 TeV. Predictions are made for the multiplicities to be measured in pp and AA collisions at LHC.

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Charged Particle, Photon Multiplicity, and Transverse Energy Production in High-Energy Heavy-Ion Collisions

Cited by 24 publications

References 121 publications

The NICA Complex and the MPD experiment at JINR: status and physics potential

The NICA Complex and the MPD experiment at JINR: status and physics potential

Effect of nuclear density profile on the global properties in O+O collisions at the Large Hadron Collider using a multi-phase transport model

Revealing similarity in multihadron production in nuclear and particle collisions.

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