Combined effects of nuclear Coulomb field, radial flow, and opaqueness on two-pion correlations

Abstract

Correlations of two like charged pions emitted from a hot and charged spherically expanding nuclear system are investigated. The motion of the pions is described quantum mechanically using the Klein-Gordon equation which includes Coulomb field and pion absorption. Flow modifies the radial distribution of the source function and rescales the pion wave functions. The radii extracted from the correlation functions are calculated in sideward and outward direction as a function of the pair momentum. Comparison with recent measurements at SIS and AGS energies is made.

13 pages and 4 figures

References in corpus (4)

• Two-pion correlations in Au+Au collisions at 10.8 GeV/c per nucleon
• Final state interactions in two-particle interferometry
• Coulomb Effects on Particle Spectra in Relativistic Nuclear Collisions
• Evidence for Different Freeze-Out Radii of High- and Low-Energy Pions Emitted in Au+Au Collisions at 1 GeV/nucleon

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• Azimuthal-sensitive three-dimensional HBT radius in Au-Au collisions at $E_{beam}=1.23$$A$ GeV by the IQMD model
• Understanding the Optical Potential in HBT Interferometry
• Beam energy dependent two-pion interferometry and the freeze-out eccentricity of pions in heavy ion collisions at STAR
• Impact of the Coulomb field on charged-pion spectra in few-GeV heavy-ion collisions