Phys.Rev.Lett. 129, 122501 (2022)

L.Lalanne, O.Sorlin, A.Poves, M.Assie, F.Hammache, S.Koyama, D.Suzuki, F.Flavigny, V.Girard Alcindor, A.Lemasson, A.Matta, T.Roger, D.Beaumel, Y.Blumenfeld, B.A.Brown, F.De Oliveira Santos, F.Delaunay, N.de Sereville, S.Franchoo, J.Gibelin, J.Guillot, O.Kamalou, N.Kitamura, V.Lapoux, B.Mauss, P.Morfouace, M.Niikura, J.Pancin, T.Y.Saito, C.Stodel, J-C.Thomas

Structure of ³⁶Ca under the Coulomb Magnifying Glass

NUCLEAR REACTIONS ¹H(³⁷Ca, d), (³⁸Ca, t)³⁶Ca, E≈50 MeV/nucleon, [^37,38Ca secondary beams incident on CRYPTA hydrogen target from ⁹Be(⁴⁰Ca, X), E=95 MeV/nucleon primary reaction, followed by separation of fragments using LISE3 spectrometer at GANIL facility]; measured outgoing ³⁶Ca ions, E(d), I(d), E(t), I(t), (³⁶Ca)(³⁷Ca)-coin, (³⁶Ca)(³⁸Ca)-coin, (³⁶Ca)d-coin, (³⁶Ca)t-coin, (³⁶Ca)p-coin, (³⁶Ca)2p-coin, using zero-degree detection (ZDD) system for ³⁶Ca, multiwire detectors CATS array for ³⁷Ca, six MUST2 telescopes with double-sided Silicon strip detector (DSSSD) and 16 CsI crystals for deuterons, tritons and protons. ³⁶Ca; deduced levels, proton resonances, J, π, 0+ as the first excited state, L-transfers, spectroscopic factors, configurations and their amplitudes, mirror energy differences (MEDs) of levels in ³⁶Ca and ³⁶S. DWBA analysis. Comparison with shell-model calculations with configuration interaction (SM CI) using the sd-pf valence space, and with previous experimental results. ³⁴Ar, ³⁵K; deduced levels from the 2p decay of 7.84-MeV level in ³⁶Ca. Details of experimental and theoretical spectroscopic data provided in the Supplemental Material of the paper.

doi: 10.1103/PhysRevLett.129.122501