Abstract
We present a mass number scaling property of light (anti)nuclei production in midrapidity Au + Au collisions at GeV, based on the parton and hadron cascade and dynamically constrained phase-space coalescence (PACIAE + DCPC) model. We found that the integrated yields of light (anti)nuclei decrease exponentially with the increase of mass numbers, which can be characterized quantitatively with temperature T at the hadronic freeze-out process. Furthermore, we found that the integrated yields of (anti)nuclei per participant nucleon increase from peripheral to central collisions more rapidly with increasing mass number, and the increasing rates for different mass numbers can be approximately described by a universal line.
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