Eur.Phys.J. A 60, 181 (2024)

M.Mathy, M.Petri, R.Roth, L.Wagner, S.Heil, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, H.L.Crawford, P.Fallon, J.Elson, J.Kinnison, T.Lauritsen, I.-Y.Lee, A.O.Macchiavelli, S.Paschalis, W.Reviol, D.G.Sarantites, I.Syndikus, S.L.Tabor, M.Wiedeking, S.Zhu

Lifetimes of excited states in ¹⁶C as a benchmark for ab initio developments

NUCLEAR REACTIONS ⁹Be(⁹Be, 2p), E=40 MeV; measured reaction products, Eγ, Iγ; deduced energy levels T_1/2, lifetimes of higher-lying states. Comparison with No-Core Shell-Model calculations using state-of-the-art chiral 2^- (NN) and 3-nucleon (3N) interactions at next-to-next-to-next-to-leading order for both the NN and the 3N contributions and a generalized natural-orbital basis. Doppler-Shift Attenuation Method (DSAM) experiment was employed at the Tandem Linac Accelerator System (ATLAS) of the Argonne National Laboratory (ANL).

doi: 10.1140/epja/s10050-024-01396-2