Central Coulomb Effects on Pion Interferometry

Abstract

Using a simple final-state rescattering model coupled with a simple Coulomb model, the effects of the central Coulomb potential on pion interferometry measurements in 158 GeV/nucleon Pb+Pb collisions are explored. Although the central Coulomb potential does not introduce correlations between pions, it does prevent an accurate measurement of the momentum difference. This momentum difference smearing effect leads to a reduction in the measured correlation radii and lambda parameters. These distortions are important in 158 GeV/nucleon Pb+Pb collisions because of large source sizes and the strong central Coulomb potential.

6 pages, Latex, 2 postscript figures

References in corpus (2)

• Freeze-Out Time in Ultrarelativistic Heavy Ion Collisions from Coulomb Effects in Transverse Pion Spectra
• Coulomb Effects on Charged Kaon Distributions From Vlasov Dynamics

Cited by in corpus (5)

• Boson Interferometry in High Energy Physics
• Transport model study of the $m_T$-scaling for $\Lambda$, K, and $\pi$ HBT-correlations
• Coulomb corrections to the three-body correlation function in high-energy heavy ion reactions
• Effect of the source charge on charged-beam interferometry
• Impact of the Coulomb field on charged-pion spectra in few-GeV heavy-ion collisions