scholarly journals Considerations on the suppression of charged particles and π0 in high-energy heavy-ion collisions

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
M. Petrovici ◽  
A. Lindner ◽  
A. Pop
Keyword(s):  
Heavy Ion Collisions ◽  
Charged Particles ◽  
Heavy Ion ◽  
High Energy ◽  
Ion Collisions

Pseudorapidity distribution of relativistic singly charged particles in heavy-ion collisions at high energy

1999 ◽  
Vol 77 (4) ◽  
pp. 313-318 ◽  
Author(s):  
F -H Liu ◽  
Y A Panebratsev
Keyword(s):  
Experimental Data ◽  
Heavy Ion Collisions ◽  
Charged Particles ◽  
Heavy Ion ◽  
High Energy ◽  
Pseudorapidity Distribution ◽  
Ion Collisions ◽  
Singly Charged

The pseudorapidity distribution of relativistic singly charged particles produced in high-energy heavy-ion collisions is described by the thermalized cylinder picture. The calculated results are in agreement with the experimental data of lead-induced interactions at 158A GeV/c. PACS Nos.:25.75.-q and 25.75.Dw

scholarly journals A Description of Pseudorapidity Distributions of Charged Particles Produced in Au+Au Collisions at RHIC Energies

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Z. J. Jiang ◽  
Dongfang Xu ◽  
Yan Huang
Keyword(s):  
Phase Transition ◽  
Heavy Ion Collisions ◽  
Charged Particles ◽  
Dense Matter ◽  
Heavy Ion ◽  
High Energy ◽  
Low Energy ◽  
Ion Collisions ◽  
Rapidity Distributions ◽  
Pseudorapidity Distributions

In heavy ion collisions, charged particles come from two parts: the hot and dense matter and the leading particles. In this paper, the hot and dense matter is assumed to expand according to the hydrodynamic model including phase transition and decouples into particles via the prescription of Cooper-Frye. The leading particles are as usual supposed to have Gaussian rapidity distributions with the number equaling that of participants. The investigations of this paper show that, unlike low energy situations, the leading particles are essential in describing the pseudorapidity distributions of charged particles produced in high energy heavy ion collisions. This might be due to the different transparencies of nuclei at different energies.

scholarly journals Centrality, transverse momentum and collision energy dependence of the Tsallis parameters in relativistic heavy-ion collisions

2021 ◽  
Vol 136 (6) ◽  
Author(s):  
Rajendra Nath Patra ◽  
Bedangadas Mohanty ◽  
Tapan K. Nayak
Keyword(s):  
Transverse Momentum ◽  
Heavy Ion Collisions ◽  
Collision Energy ◽  
Charged Particles ◽  
Heavy Ion ◽  
High Energy ◽  
Relativistic Heavy Ion Collisions ◽  
Central Collisions ◽  
Ion Collisions ◽  
Tsallis Distribution

AbstractThe thermodynamic properties of matter created in high-energy heavy-ion collisions have been studied in the framework of the non-extensive Tsallis statistics. The transverse momentum ($$p_\mathrm{T}$$ p T ) spectra of identified charged particles (pions, kaons, protons) and all charged particles from the available experimental data of Au-Au collisions at the Relativistic Heavy Ion Collider (RHIC) energies and Pb-Pb collisions at the Large Hadron Collider (LHC) energies are fitted by the Tsallis distribution. The fit parameters, q and T, measure the degree of deviation from an equilibrium state and the effective temperature of the thermalized system, respectively. The $$p_\mathrm{T}$$ p T  spectra are well described by the Tsallis distribution function from peripheral to central collisions for the wide range of collision energies, from $$\sqrt{s_\mathrm{NN}}$$ s NN = 7.7 GeV to 5.02 TeV. The extracted Tsallis parameters are found to be dependent on the particle species, collision energy, centrality, and fitting ranges in $$p_\mathrm{T}$$ p T . For central collisions, both q and T depend strongly on the fit ranges in $$p_\mathrm{T}$$ p T . For most of the collision energies, q remains almost constant as a function of centrality, whereas T increases from peripheral to central collisions. For a given centrality, q systematically increases as a function of collision energy, whereas T has a decreasing trend. A profile plot of q and T with respect to collision energy and centrality shows an anti-correlation between the two parameters.

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

2015 ◽  
Vol 2015 ◽  
pp. 1-30 ◽  
Author(s):  
Raghunath Sahoo ◽  
Aditya Nath Mishra ◽  
Nirbhay K. Behera ◽  
Basanta K. Nandi
Keyword(s):  
Charged Particle ◽  
Heavy Ion Collisions ◽  
Energy Production ◽  
Transverse Energy ◽  
Charged Particles ◽  
Heavy Ion ◽  
High Energy ◽  
Initial Energy ◽  
Ion Collisions ◽  
Limiting Fragmentation

We review the charged particle and photon multiplicities and transverse energy production in heavy-ion collisions starting from few GeV to TeV energies. The experimental results of pseudorapidity distribution of charged particles and photons at different collision energies and centralities are discussed. We also discuss the hypothesis of limiting fragmentation and expansion dynamics using the Landau hydrodynamics and the underlying physics. Meanwhile, we present the estimation of initial energy density multiplied with formation time as a function of different collision energies and centralities. In the end, the transverse energy per charged particle in connection with the chemical freeze-out criteria is discussed. We invoke various models and phenomenological arguments to interpret and characterize the fireball created in heavy-ion collisions. This review overall provides a scope to understand the heavy-ion collision data and a possible formation of a deconfined phase of partons via the global observables like charged particles, photons, and the transverse energy measurement.

scholarly journals Elliptic flow of colored glass in high energy heavy ion collisions

2003 ◽  
Vol 554 (1-2) ◽  
pp. 21-27 ◽  
Author(s):  
Alex Krasnitz ◽  
Yasushi Nara ◽  
Raju Venugopalan
Keyword(s):  
Heavy Ion Collisions ◽  
Elliptic Flow ◽  
Heavy Ion ◽  
High Energy ◽  
Colored Glass ◽  
Ion Collisions

scholarly journals Primary Projectile Fragmentation Distribution in High Energy Heavy Ion Collisions

1984 ◽  
Vol 71 (6) ◽  
pp. 1429-1431 ◽  
Author(s):  
Y. Kitazoe ◽  
O. Hashimoto ◽  
H. Toki ◽  
Y. Yamamura ◽  
M. Sano
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Projectile Fragmentation ◽  
Ion Collisions

scholarly journals Signatures of QGP at RHIC and the LHC

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
T. Niida ◽  
Y. Miake
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
High Energy ◽  
Jet Quenching ◽  
Theoretical Studies ◽  
Debye Screening ◽  
Direct Photons ◽  
Ion Collisions ◽  
Experimental And Theoretical Studies

AbstractThe progress over the 30 years since the first high-energy heavy-ion collisions at the BNL-AGS and CERN-SPS has been truly remarkable. Rigorous experimental and theoretical studies have revealed a new state of the matter in heavy-ion collisions, the quark-gluon plasma (QGP). Many signatures supporting the formation of the QGP have been reported. Among them are jet quenching, the non-viscous flow, direct photons, and Debye screening effects. In this article, selected signatures of the QGP observed at RHIC and the LHC are reviewed.

Sign in / Sign up

Export Citation Format

Share Document