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Open Access Publications from the University of California

Femtoscopy of stopped protons


The longitudinal proton-proton femtoscopy (Hanbury Brown-Twiss) correlation function, based on the idea that in a heavy-ion collision at s20GeV 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.

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