Phys.Rev.Lett. 97, 092501 (2006)

L.Gaudefroy, O.Sorlin, D.Beaumel, Y.Blumenfeld, Z.Dombradi, S.Fortier, S.Franchoo, M.Gelin, J.Gibelin, S.Grevy, F.Hammache, F.Ibrahim, K.W.Kemper, K.-L.Kratz, S.M.Lukyanov, C.Monrozeau, L.Nalpas, F.Nowacki, A.N.Ostrowski, T.Otsuka, Yu.-E.Penionzhkevich, J.Piekarewicz, E.C.Pollacco, P.Roussel-Chomaz, E.Rich, J.A.Scarpaci, M.G.St.Laurent, D.Sohler, M.Stanoiu, T.Suzuki, E.Tryggestad, D.Verney

Reduction of the Spin-Orbit Splittings at the N = 28 Shell Closure

NUCLEAR REACTIONS ²H(⁴⁶Ar, p), E=10.7 MeV/nucleon; measured Ep, σ(E, θ), (Argon)p-coin, excitation energy spectra. ⁴⁷Ar deduced single-neutron level energies, spectroscopic factors, shell gap reduction, spin-orbit interaction features.

doi: 10.1103/PhysRevLett.97.092501