Pion transverse-momentum spectrum and elliptic anisotropy of partially coherent source
arXiv:1707.05461 · doi:10.1016/j.physletb.2017.12.013
Abstract
In this letter, we study the pion momentum distribution of a coherent source and investigate the influences of coherent emission on the pion transverse-momentum () spectrum and elliptic anisotropy. With a partially coherent source, constructed by a conventional viscous hydrodynamics model (chaotic part) and a parameterized expanding coherent source model, we reproduce the pion spectrum and elliptic anisotropy coefficient in the peripheral Pb-Pb collisions at TeV. It is found that the influences of coherent emission on the pion spectrum and are related to the initial size and shape of the coherent source, largely due to the interference effect. However, the effect of source dynamical evolution on coherent emission is relatively small. The results of the partially coherent source with 33% coherent emission and 67% chaotic emission are consistent with the experimental measurements of the pion spectrum, , and especially four-pion Bose-Einstein correlations.
arXiv comment8 pages, 4 figures
References in corpus (45)
- Viscosity Information from Relativistic Nuclear Collisions: How Perfect is the Fluid Observed at RHIC?
- Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
- Centrality dependence of , K, p production in Pb-Pb collisions at = 2.76 TeV
- Azimuthal anisotropy in Au+Au collisions at sqrtsNN = 200 GeV
- Event-by-event anisotropic flow in heavy-ion collisions from combined Yang-Mills and viscous fluid dynamics
- QCD Equation of State and Hadron Resonance Gas
- Causal viscous hydrodynamics in 2+1 dimensions for relativistic heavy-ion collisions
- Identified particle distributions in pp and Au+Au collisions at sqrt{s_NN}=200 GeV
- Suppression of elliptic flow in a minimally viscous quark-gluon plasma
- Gluon Production from Non-Abelian Weizsäcker-Williams Fields in Nucleus-Nucleus Collisions
- Particle Interferometry for Relativistic Heavy-Ion Collisions
- Event-by-event shape and flow fluctuations of relativistic heavy-ion collision fireballs
- Multiplicity scaling in ideal and viscous hydrodynamics
- Radial and elliptic flow in Pb+Pb collisions at the Large Hadron Collider from viscous hydrodynamic
- Color Glass Condensate at the LHC: hadron multiplicities in , and collisions
- Pion, kaon, and proton production in central Pb-Pb Collisions at TeV
- Hydrodynamical Description of 200 A GeV/c S+Au Collisions: Hadron and Electromagnetic Spectra
- Flow and interferometry in 3+1 dimensional viscous hydrodynamics
- Bose--Einstein Condensation and Thermalization of the Quark Gluon Plasma
- The onset of classical QCD dynamics in relativistic heavy ion collisions
- Boson Interferometry in High Energy Physics
- Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
- Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
- Mass ordering of spectra from fragmentation of saturated gluon states in high multiplicity proton-proton collisions
- Pion Production from Baked-Alaska Disoriented Chiral Condensate
- Systematic Studies of Elliptic Flow Measurements in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Spectra and elliptic flow for identified hadrons in 2.76 A TeV Pb+Pb collisions
- Title Quantum Optics and Heavy Ion Physics
- Two and Three-Pion Quantum Statistics Correlations in Pb-Pb Collisions at TeV at the LHC
- Search for Disoriented Chiral Condensates in 158 AGeV Pb+Pb Collisions
- Analytic Solution of the Pion-Laser Model
- Bose-Einstein condensation of pions in heavy-ion collisions at the CERN Large Hadron Collider (LHC) energies
- Thermalization of gluons with Bose-Einstein condensation
- Multipion Bose-Einstein correlations in pp, p-Pb, and Pb-Pb collisions at the LHC
- Identified hadron transverse momentum spectra in Au+Au collisions at sqrt(s_(NN))=62.4 GeV
- Techniques for multiboson interferometry
- Correlation search for coherent pion emission in heavy ion collisions
- Analysis of pion elliptic flows and HBT interferometry in a granular quark-gluon plasma droplet model
- Chaoticity Parameter Lambda in Hanbury-Brown Twiss Interferometry
- Glasma Evolution and Bose-Einstein Condensation with Elastic and Inelastic Collisions
- Causal relativistic hydrodynamics for viscous fluids
- Collective Expansion at the LHC: selected ALICE anisotropic flow measurements
- Chaoticity parameter in two-pion interferometry in an expanding boson gas model
- Chaotic parameter in Hanbury-Brown-Twiss interferometry in an anisotropic boson gas model
- Coherence effects on pion spectrum distribution