Coulomb Effects in Femtoscopy

Abstract

The correlation function of two identical particles - pions or kaons - interacting via Coulomb potential is computed. The particles are emitted from an anisotropic particle's source of finite lifetime. In the case of pions, the effect of halo is taken into account as an additional particle's source of large spatial extension. The relativistic effects are discussed in detail. The Bowler-Sinyukov procedure to remove the Coulomb interaction is carefully tested. In the absence of halo the procedure is shown to work very well even for an extremely anisotropic source. When the halo is taken into account the free correlation function, which is extracted by means of the Bowler-Sinyukov procedure, is distorted at small relative momenta but the source parameters are still correctly reproduced.

19 pages, 16 figures; final version, Phys. Rev. C80, 034907 (2009)

References in corpus (28)

• Femtoscopy in Relativistic Heavy Ion Collisions: Two Decades of Progress
• Particle Interferometry for Relativistic Heavy-Ion Collisions
• Pion interferometry in Au+Au collisions at $\sqrt{{\mathrm{s}}_{{}_{\mathrm{NN}}}}$ = 200 GeV
• The Time-Delay Signature of Quark-Gluon-Plasma Formation in Relativistic Nuclear Collisions
• Two-Particle Correlations in Relativistic Heavy-Ion Collisions
• Pion Interferometry of $\sqrt{s_{NN}}=130$ GeV Au+Au Collisions at RHIC
• Bose-Einstein Correlations of Charged Pion Pairs in Au+Au Collisions at sqrt(s_NN)=200_ GeV
• Transverse mass dependence of two-pion correlations in Au+Au collisions at sqrt(s_NN) = 130 GeV
• A new cross term in the two-particle Hanbury-Brown-Twiss correlation function
• Initial condition for hydrodynamics, partonic free streaming, and the uniform description of soft observables at RHIC
• Imaging of Sources in Heavy-Ion Reactions
• Azimuthally sensitive Hanbury Brown-Twiss interferometry in Au+Au collisions at sqrt(s_{NN}) = 200 GeV
• The Maximum Lifetime of the Quark-Gluon Plasma
• Resonance contributions to HBT correlation radii
• Femtoscopy in hydro-inspired models with resonances
• Bose-Einstein correlations of pion pairs in central Pb+Pb collisions at CERN SPS energies
• Lifetimes and Sizes from Two-Particle Correlation Functions
• Evidence for a long-range component in the pion emission source in Au+Au collisions at sqrt(s_NN) = 200 GeV
• Physics of Coulomb Corrections in Hanbury-Brown Twiss Interferometry in Ultrarelativistic Heavy Ion Collisions
• Source breakup dynamics in Au+Au Collisions at sqrt(s_NN)=200 GeV via three-dimensional two-pion source imaging
• Testing the Core-Halo Model on Bose-Einstein Correlation Functions
• Imaging Three Dimensional Two-particle Correlations for Heavy-Ion Reaction Studies
• Comparison of Source Images for protons, ${\pi }^{-}$'s and $\Lambda$'s in 6 AGeV Au+Au collisions
• Hydrogen Atom in Relativistic Motion
• Model-independent source imaging using two-pion correlations in 2 to 8A GeV Au + Au collisions
• Correlations and Fluctuations, A Summary of Quark Matter 2002
• Does interferometry probe thermalization?
• Towards reliable calculations of the correlation function

Cited by in corpus (13)

• Production of light nuclei at colliders -- coalescence vs. thermal model
• Production of ${}^4\mathrm{Li}$ and $p-{}^3\mathrm{He}$ correlation function in relativistic heavy-ion collisions
• Femtoscopy with identified charged pions in proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with ATLAS
• Two-pion femtoscopic correlations in Be+Be collisions at $\sqrt{s_{\text{NN}}}=16.84$ GeV measured by the NA61/SHINE at CERN
• Deuteron-Deuteron Correlation Function in Nucleus-Nucleus Collisions
• Deuteron and Antideuteron Coalescence in Heavy-Ion Collisions: Energy Dependence of the Formation Geometry
• A novel method for calculating Bose-Einstein correlation functions with Coulomb final-state interaction
• Femtoscopic correlation measurement with symmetric Lévy-type source at NA61/SHINE
• Sum Rule of Femtoscopic Correlation Function
• Impact of the Coulomb field on charged-pion spectra in few-GeV heavy-ion collisions
• Femtoscopy analysis in small systems at NA61/SHINE
• Femtoscopy at NA61/SHINE using symmetric Lévy sources in central ${}^{40}$Ar+${}^{45}$Sc from 40$A$ GeV/$c$ to 150$A$ GeV/$c$
• Effect of an Expanding Charged Cloud on two-particle Bose-Einstein Correlations