Prediction for a Four-Neutron Resonance

2016/07/26 by A. M. Shirokov, G. Papadimitriou, A. I. Mazur +4
Physics and Astronomy · #Ab initio #Atomic physics #Computer science #Core (optical fiber) #Energy (signal processing) #Extension (predicate logic) #Neutron #Nuclear physics #Nuclear physics research studies #Optics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #R-matrix #Resonance (particle physics) #SHELL model #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevlett.117.182502

published as Phys. Rev. Lett. 117, 182502 (2016) · 5 pages, 3 figures

arxiv created 2016/07/26 · openalex publication_date 2016/10/28 · arxiv updated 2016/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We utilize various ab initio approaches to search for a low-lying resonance in the four-neutron (4n) system using the JISP16 realistic NN interaction. Our most accurate prediction is obtained using a J-matrix extension of the no-core shell model and suggests a 4n resonant state at an energy near E_r=0.8 MeV with a width of approximately \mathrm\ensuremathΓ=1.4 MeV.

Citations

• Is a physically observable tetraneutron resonance compatible with realistic nuclear interactions?
• Loosely bound three-body nuclear systems in the J-matrix approach
• P-Matrix and J-Matrix Approaches: Coulomb Asymptotics in the Harmonic Oscillator Representation of Scattering Theory
• Do multineutrons exist?
• Is the tetraneutron a bound dineutron–dineutron molecule?
• Candidate Resonant Tetraneutron State Populated by theHe<mml:mprescripts/><mml:none/>4(He<mml:mprescripts/><mml:none/>8,Be<mml:mprescripts/><mml:none/>8)Reaction
• Ab initio no core shell model