2007/12/05 by C. Romero-Redondo, E. Garrido, D. V. Fedorov +1
Mathematics · Physics and Astronomy · #Algorithm #Atomic and Molecular Physics #Atomic physics #Energy (signal processing) #Excitation #Mathematics #Neutron #Nuclear Physics and Applications #Nuclear physics #Nuclear physics research studies #Physics #Quantum mechanics #Resonance (particle physics) #State (computer science) #nucl-th
paper · pdf · doi:10.1016/j.physletb.2007.12.014
published as Phys.Lett.B660:32-36,2008 · to be published in Physics Letters B
arxiv created 2007/12/05 · openalex publication_date 2008/01/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We predict the existence of an isomeric 0−-state in 12Be at an excitation energy of about 2.5 MeV, and a 0−-resonance in 11Li with both energy and width of about 1 MeV corresponding to two-neutron emission. The structure of these halo-like states are like the 1−-states which means essentially a core surrounded by two neutrons in single-particle s- and p-states. The life-time of the 12Be state is determined by M1- or M2-emission, τ(M1)≈10−11 s or τ(M2)≈10−8 s estimated for photon energies of 0.1 MeV and 0.6 MeV, respectively.