In-medium mass modification enhances the antiproton-to-proton yield ratio at RHIC, and the back-to-back correlation signal for proton-antiproton pairs is highly sensitive to the assumed source time distribution.
Here, m∗ ̸= m0 indicates that the mass of the fermions (antifermions) has been modified due to their interaction with the medium
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Squeezed spectra and back-to-back correlations of protons and antiprotons at RHIC energies
In-medium mass modification enhances the antiproton-to-proton yield ratio at RHIC, and the back-to-back correlation signal for proton-antiproton pairs is highly sensitive to the assumed source time distribution.