Rescattering Effects on Intensity Interferometry

Abstract

We derive a general formula for the correlation function of two identical particles with the inclusion of multiple elastic scatterings in the medium in which the two particles are produced. This formula involves the propagator of the particle in the medium. As illustration of the effect we apply the formula to the special case where the scatterers are static, localized 2-body potentials. In this illustration both $R_{\mathrm{side}}^2$ and $R_{\mathrm{out}}^2$ are increased by an amount proportional to the square of the spatial density of scatterers and to the differential cross section. Specific numbers are used to show the expected magnitude of the rescattering effect on kaon interferometry.

15 pages, 4 figures

References in corpus (4)

• Femtoscopy in Relativistic Heavy Ion Collisions: Two Decades of Progress
• Pion interferometry in Au+Au collisions at $\sqrt{{\mathrm{s}}_{{}_{\mathrm{NN}}}}$ = 200 GeV
• Bose-Einstein Correlations of Charged Pion Pairs in Au+Au Collisions at sqrt(s_NN)=200_ GeV
• Quantum Opacity, the RHIC HBT Puzzle, and the Chiral Phase Transition

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• HBT interferometry with quantum transport of the interfering pair
• Refractive Distortions of Two-Particle Correlations from Classical Trajectory Calculations
• Understanding the Optical Potential in HBT Interferometry
• Perspectives in Small Systems : Heavy Quarks and HBT Radii