Squeezed correlations of strange particle-antiparticles

TL;DR

This paper discusses the theoretical prediction and potential experimental detection of squeezed correlations in strange hadron-antihadron pairs, which could indicate in-medium mass modifications in hot dense nuclear matter.

Contribution

It proposes a method to search for squeezed correlations and illustrates it using D_s-mesons with in-medium mass shifts, highlighting their detectability in future experiments.

Findings

Squeezed correlations are predicted to occur if hadron masses are modified in medium.

The proposed method can identify these correlations as evidence of in-medium mass shifts.

D_s-mesons are promising candidates for observing these effects in upcoming RHIC experiments.

Abstract

Squeezed correlations of hadron-antihadron pairs are predicted to appear if their masses are modified in the hot and dense medium formed in high energy heavy ion collisions. If discovered experimentally, they would be an unequivocal evidence of in-medium mass shift found by means of hadronic probes. We discuss a method proposed to search for this novel type of correlation, illustrating it by means of D_s-mesons with in-medium shifted masses. These particles are expected to be more easily detected and identified in future upgrades at RHIC.