2020/09/30 by Tiago Custódio, Alexandre Falcão, Helena Pais +3
Physics and Astronomy · #Cluster (spacecraft) #Coupling (piping) #Formalism (music) #Heavy ion #High-Energy Particle Collisions Research #Meson #Nuclear matter #Nuclear physics research studies #Pulsars and Gravitational Waves Research #Scalar (mathematics) #astro-ph.HE #astro-ph.SR #nucl-th
paper · pdf · doi:10.1140/epja/s10050-020-00302-w
published as Eur. Phys. J. A 56, 295 (2020) · 10 pages, 8 figures, and 1 table; accepted for publication in the EPJA Topical Issue "Light Clusters in Nuclei and Nuclear Matter: Nuclear Structure and Decay, Heavy Ion Collisions, and Astrophysics"
openalex publication_date 2020/11/01 · arxiv created 2020/11/25 · arxiv updated 2020/11/26 · openalex created_date 2020/12/07 · openalex updated_date 2026/08/05
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 6He, in asymmetric matter is discussed.