Nuclear matter equation of state including few-nucleon correlations $(A\le 4)$

Abstract

Light clusters (mass number $A\le 4$) in nuclear matter at subsaturation densities are described using a quantum statistical approach. In addition to self-energy and Pauli-blocking, effects of continuum correlations are taken into account to calculate the quasiparticle properties and abundances of light elements. Medium-modified quasiparticle properties are important ingredients to derive a nuclear matter equation of state applicable in the entire region of warm dense matter below saturation density. Moreover, the contribution of continuum states to the equation of state is considered. The effect of correlations within the nuclear medium on the quasiparticle energies is estimated. The properties of light clusters and continuum correlations in dense matter are of interest for nuclear structure calculations, heavy ion collisions, and for astrophysical applications such as the formation of neutron stars in core-collapse supernovae.

24 pages, 4 figures

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• Towards a Unified Quark-Hadron Matter Equation of State for Applications in Astrophysics and Heavy-Ion Collisions
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• Light $p$-shell nuclei with cluster structures ($4\le A\le 16$) in nuclear matter
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• Composition of nuclear matter with light clusters and Bose-Einstein condensation of $\alpha$ particles
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• Embedding short-range correlations in relativistic density functionals through quasi-deuterons
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• Improved method for the experimental determination of in-medium effects from heavy-ion collisions
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• Deuteron yields from LHC: Continuum correlations and in-medium effects
• Light clusters in warm stellar matter: calibrating the cluster couplings
• Medium effects on freeze-out of light clusters at NICA energies
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• Employing ternary fission of ${}^{242}$Pu as a probe of very neutron rich matter
• Thermodynamics of quark matter with multiquark clusters in an effective Beth-Uhlenbeck type approach
• Influence of the tetraneutron on the EoS under core-collapse supernovae and heavy-ion collisions conditions
• Cluster production and the chemical freeze-out in expanding hot dense matter
• Dynamics of dilute nuclear matter with light clusters and in-medium effects
• How Well Do We Know The Supernova Equation of State?
• Impact of dineutrons on nuclear compositions of a core-collapse supernova
• Pauli Blocking in Degenerate Plasmas and the Separable Potential Approach
• Phase-space excluded-volume approach for light clusters in nuclear medium
• Alpha clustering in warm and dense nuclear matter from heavy-ion collisions
• Quartetting Wave Function Approach to ${}^{20}$Ne: Shell Model and Local Density Approximation
• Light clusters as a possible source of crustal impurities: a quasi-particle approach
• Clusters in nuclear matter and Mott points
• Nuclear Drip Line and the Composition of Supernova Matter
• Light hyperclusters and hyperons in low-density hot stellar matter
• Medium effects on light clusters from heavy-ion collisions within a relativistic mean-field description