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arXiv · 1909.03157

Searching for $^4\overline{L}i$ by momentum correlation function of $\overline{p}-^3\overline{H}e$

Bao-Shan Xi·Zheng-Qiao Zhang·Song Zhang·Yu-Gang Ma
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Abstract

The observed heaviest anti-nucleus so far is $^4\overline{H}e$ which is found in relativistic heavy ion collider in 2011. The yield of $^4\overline{L}i$ is four times bigger than that of $^4\overline{H}e$ according to the thermal model. From previous scattering experiment, we know that the $^4Li$ has a very short life time about $1.197\times10^{-22}s$. It decays into $^3{H}e$ and ${p}$. In experiment, the correlation function of $\overline{p}-^3\overline{H}e$ will offer us a method to observe $^4\overline{L}i$ by CPT symmetry. In this paper, we use the blast-wave model and Lednicky-Lyuboshitz analytical model to obtain a prediction of the correlation function of $\overline{p}-{}^3\overline{H}e$ with/without $^4\overline{L}i$ decay in Au + Au collisions at $\sqrt{S_{NN}}$ = 200 GeV. The correlation function with $^4\overline{L}i$ decay is found to exhibit a peak at $k^* \approx$ 0.073GeV/$c$. The results offer a guide for the experimental search for $^4\overline{L}i$ in relativistic heavy ion collision.

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Bao-Shan Xi, Zheng-Qiao Zhang, Song Zhang, Yu-Gang Ma. 2019-09-07. Searching for $^4\overline{L}i$ by momentum correlation function of $\overline{p}-^3\overline{H}e$. https://arxiv.org/abs/1909.03157

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