Quasiparticle properties of a single alpha particle in cold neutron matter

Abstract

Light clusters such as alpha particles and deuterons are predicted to occur in hot nuclear matter as encountered in intermediate-energy heavy-ion collisions and protoneutron stars. To examine the in-medium properties of such light clusters, we consider a much simplified system in which like an impurity, a single alpha particle is embedded in a zero-temperature, dilute gas of non-interacting neutrons. By adopting a non-selfconsistent ladder approximation for the effective interaction between the impurity and the gas, which is often used for analyses of Fermi polarons in a gas of ultracold atoms, we calculate the quasiparticle properties of the impurity, i.e., the energy shift, effective mass, quasiparticle residue, and damping rate.

19 pages, 3 figures, version accepted for PRC: discussions on p-wave contributions and the validity range of the model were added

References in corpus (15)

• Observation of Fermi Polarons in a Tunable Fermi Liquid of Ultracold Atoms
• The Equation of State of a Low-Temperature Fermi Gas with Tunable Interactions
• Exploring an ultracold Fermi-Fermi mixture: Interspecies Feshbach resonances and scattering properties of 6Li and 40K
• Repulsive Fermi polarons in a resonant mixture of ultracold ${}^6$Li atoms
• Nuclear equation of state for core-collapse supernova simulations with realistic nuclear forces
• Bound clusters on top of doubly magic nuclei
• Neutron skin thickness of heavy nuclei with $\alpha$-particle correlations and the slope of the nuclear symmetry energy
• A comparative study of statistical models for nuclear equation of state of stellar matter
• Alpha Decay to Doubly Magic Core in Quartetting Wave Function Approach
• Superfluid Fermi atomic gas as a quantum simulator for the study of neutron-star equation of state
• Resonantly Interacting Fermi-Fermi Mixture of ${}^{161}$Dy and ${}^{40}$K
• Nuclear Pasta Matter for Different Proton Fractions
• Light $p$-shell nuclei with cluster structures ($4\le A\le 16$) in nuclear matter
• The p-wave polaron
• Cold Atom Quantum Simulator for Dilute Neutron Matter

Cited by in corpus (15)

• Polaron Problems in Ultracold Atoms: Role of a Fermi Sea across Different Spatial Dimensions and Quantum Fluctuations of a Bose Medium
• Cooper quartet correlations in infinite symmetric nuclear matter
• Intersections of ultracold atomic polarons and nuclear clusters: How is a chart of nuclides modified in dilute neutron matter?
• Binding two and three $\alpha$ particles in cold neutron matter
• Fermi polaron in low-density spin-polarized neutron matter
• Polaronic Proton and Diproton Clustering in Neutron-Rich Matter
• Resonance-to-bound transition of ${}^5$He in neutron matter and its analogy with heteronuclear Feshbach molecule
• Three-Dimensional Approach Applied to Quasi-stationary States of Deformed $\alpha$-Emitters
• Relativistic heat conduction in the large-flux regime
• Interlayer Fermi polarons of excited exciton states in quantizing magnetic fields
• Quartet correlations near the surface of $N=Z$ nuclei
• Repulsive Fermi and Bose Polarons in Quantum Gases
• Polaronic neutron in dilute alpha matter: A $p$-wave Bose polaron
• The Gor'kov and Melik-Barkhudarov correction to an imbalanced Fermi gas in the presence of impurities
• Structure of two- and three-alpha systems in cold neutron matter