Multiparticle production in nuclear collisions using effective-energy approach

Abstract

The dependencies of charged particle pseudorapidity density and transverse energy pseudorapidity density at midrapidity on the collision energy and on the number of nucleon participants, or centrality, measured in nucleus-nucleus collisions are studied in the energy range spanning a few GeV to a few TeV per nucleon. The study is based on the earlier proposed model, combining the constituent quark picture together with Landau relativistic hydrodynamics and shown to interrelate the measurements from different types of collisions. Within this picture, the dependence on the number of participants in heavy-ion collisions are found to be well described in terms of the effective energy defined as a centrality-dependent fraction of the collision energy. The effective energy approach is shown to reveal a similarity in the energy dependence for the most central and centrality data in the entire available energy range. Predictions are made for the forthcoming higher-energy measurements in heavy-ion collisions at the LHC.

arXiv commentInvited Talk given by Aditya Nath Mishra in XLIV International Symposium on Multiparticle Dynamics(ISMD-2014), 8-12 Sept. 2014, Bologna, Italy and 10th Workshop on Particle Correlations and Femptoscopy (WPCF-2014), 25-29 August 2014, Gyongyos, Hungary

References in corpus (23)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Centrality dependence of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at sqrt(s) = 7 TeV
• Charged-particle multiplicity density at mid-rapidity in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Phobos results on charged particle multiplicity and pseudorapidity distributions in Au+Au, Cu+Cu, d+Au, and p+p collisions at ultra-relativistic energies
• Identified particle production, azimuthal anisotropy, and interferometry measurements in Au+Au collisions at $\sqrt{s_{NN}}$ = 9.2 GeV
• Charged Meson Rapidity Distributions in central Au+Au Collisions at sqrt(s_nn) = 200 GeV
• Central Collisions of Au on Au at 150, 250 and 400 A MeV
• Charged-Particle Multiplicity in Proton-Proton Collisions
• Dependence on pseudorapidity and centrality of charged hadron production in PbPb collisions at a nucleon-nucleon centre-of-mass energy of 2.76 TeV
• Measurement of the centrality dependence of the charged particle pseudorapidity distribution in lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector
• Relating multihadron production in hadronic and nuclear collisions
• Nucleon participants or quark participants?
• Measurement of the pseudorapidity and centrality dependence of the transverse energy density in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Scaling of Particle and Transverse Energy Production in 208Pb+208Pb collisions at 158 A GeV
• Transverse-energy distributions at midrapidity in $p$$+$$p$, $d$$+$Au, and Au$+$Au collisions at $\sqrt{s_{{}_{NN}}}=62.4$--200~GeV and implications for particle-production models
• Effective-energy budget in multiparticle production in nuclear collisions
• Particle production sources at LHC energies
• Quark participants and global observables
• Rapidity Spectra of the Secondaries Produced in Heavy Ion Collisions and the Constituent Picture of the Particles
• Selected Experimental Results from Heavy Ion Collisions at LHC
• Transverse energy and charged particle production in heavy-ion collisions: From RHIC to LHC
• Similarity of Initial States in A+A and p+p Collisions in Constituent Quarks Framework