Femtoscopy of stopped protons

Abstract

The longitudinal proton-proton femtoscopy (HBT) correlation function, based on the idea that in a heavy ion collision at $\sqrt{s}\lesssim 20$ GeV stopped protons are likely to be separated in configuration space, is evaluated. It shows a characteristic oscillation which appears sufficiently pronounced to be accessible in experiment. The proposed measurement is essential for estimating the baryon density in the central rapidity region, and can be also viewed as an (almost) direct verification of the Lorentz contraction of the fast-moving nucleus.

8 pages, 3 figures; discussion on strong and Coulomb interactions included

References in corpus (2)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• Centrality dependence of proton and antiproton spectra in Pb+Pb collisions at 40A GeV and 158A GeV measured at the CERN SPS

Cited by in corpus (7)

• Particle Production via Strings and Baryon Stopping within a Hadronic Transport Approach
• Three dimensional Lévy HBT results from PHENIX
• Pseudorapidity and initial energy densities in p+p and heavy ion collisions at RHIC and LHC
• A new and finite family of solutions of hydrodynamics: Part III: Advanced estimate of the life-time parameter
• Kinetic approach to polarization-vorticity coupling and hydrodynamics with spin
• NA61/SHINE Levy HBT measurements in Be+Be collisions at 150A GeV/c
• PHENIX results on collision energy dependent Levy HBT correlations from $\sqrt{s_{NN}}$ = 15 to 200 GeV