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

2016/02/03 by K. Kisamori, S. Shimoura, H. Miya +48 · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #Quantum, superfluid, helium dynamics #Nuclear Physics and Applications

paper · doi:10.1103/physrevlett.116.052501

openalex publication_date 2016/02/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29

Abstract

A candidate resonant tetraneutron state is found in the missing-mass spectrum obtained in the double-charge-exchange reaction ⁴He(⁸He,⁸Be) at 186 MeV/u. The energy of the state is 0.83±0.65(stat)±1.25(syst) MeV above the threshold of four-neutron decay with a significance level of 4.9σ. Utilizing the large positive Q value of the (⁸He,⁸Be) reaction, an almost recoilless condition of the four-neutron system was achieved so as to obtain a weakly interacting four-neutron system efficiently.

Citations

• Coexistence of BCS- and BEC-Like Pair Structures in Halo Nuclei
• Shapiro delay measurement of a two solar mass neutron star

Cited by

• Neutron [wikipedia]