SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 37: Heavy-Ion Collisions and QCD Phases VII
HK 37.6: Vortrag
Mittwoch, 22. März 2023, 17:00–17:15, SCH/A216
Quasi-deuterons as surrogate for two-particle correlations in nuclear matter — •Stefan Typel1,2 and Stefano Burrello3 — 1TU Darmstadt, Germany — 2GSI, Darmstadt, Germany — 3LNS-INFN, Catania, Italy
Properties of dense nuclear matter are often described using energy density functionals with nucleons as degrees of freedom and effective phenomenological interactions. They usually lack in an explicit treatment of correlations that are responsible for the formation of nuclear clusters at sub-saturation densities. Two-body correlations are also essential to explain the high-momentum tails of single-particle momentum distributions that are deduced from two-nucleon knockout experiments with energetic electrons or hadronic probes. In this contribution, the concept of quasi-deuterons in nuclear matter is introduced in a relativistic density functional to effectively describe two-nucleon correlations in dense nuclear matter above saturation. It extends the description of clustering in dilute nuclear matter using the concept of medium-dependent mass shifts.