Searching for 4Li by momentum correlation function of p-3He
Abstract
The observed heaviest anti-nucleus so far is 4He which is found in relativistic heavy ion collider in 2011. The yield of 4Li is four times bigger than that of 4He according to the thermal model. From previous scattering experiment, we know that the 4Li has a very short life time about 1.197×10-22s. It decays into 3He and p. In experiment, the correlation function of p-3He will offer us a method to observe 4Li 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 p-3He with/without 4Li decay in Au + Au collisions at SNN = 200 GeV. The correlation function with 4Li decay is found to exhibit a peak at k* ≈ 0.073GeV/c. The results offer a guide for the experimental search for 4Li in relativistic heavy ion collision.
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