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arXiv · 1904.04974

Squeezed back-to-back correlations of bosons with nonzero widths in relativistic heavy-ion collisions

Peng-Zhi Xu·Wei-Ning Zhang
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Abstract

We derive the formulas for calculating the squeezed back-to-back correlation (SBBC) between a boson and antiboson with nonzero width produced in relativistic heavy-ion collisions. The SBBCs of $D^0$ and $ϕ$ mesons with finite in-medium widths are studied. We find that the finite width can change the pattern of the SBBC function of $D^0{\bar D}^0$ with respect to mass. However, the SBBC function of $ϕϕ$ is insensitive to the width. In the high-particle-momentum region, the SBBC function of $ϕϕ$ increases with particle momentum rapidly and can exceed that of $D^0{\bar D}^0$ whether the width is nonzero or not.

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Peng-Zhi Xu, Wei-Ning Zhang. 2019-07-13. Squeezed back-to-back correlations of bosons with nonzero widths in relativistic heavy-ion collisions. https://doi.org/10.1103/physrevc.100.014907

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