The abundances of light clusters within a formalism that considers in-medium effects are calculated using several relativistic mean-field models, with both density-dependent and density-independent couplings. Clusters are introduced as new quasiparticles, with a modified coupling to the scalar meson field. A comparison with experimental data from heavy ion collisions allows settling the model dependence of the results and the determination of the couplings of the light clusters to the meson fields. We find that extra experimental constraints at higher density are needed to convincingly pin down the density associated to the melting of clusters in the dense nuclear medium. The role of neutron rich clusters, such as \(^6\)He, in asymmetric matter is discussed.

在形式主义中考虑中间效应的光簇的丰度是使用几个相对论平均场模型计算出来的，其中包括密度相关和密度独立耦合。团簇作为新的准粒子引入，并与标量介子场进行了改进的耦合。与来自重离子碰撞的实验数据进行比较，可以确定结果对模型的依赖性，并确定轻簇与介子场的耦合。我们发现，需要有更高密度的额外实验约束才能令人信服地确定与致密核介质中团簇熔化相关的密度。讨论了诸如（（^ 6 \） He ）之类的中子富集团簇在不对称物质中的作用。