Phys.Lett. B 841, 137932 (2023)

M.Spieker, S.E.Agbemava, D.Bazin, S.Biswas, P.D.Cottle, P.J.Farris, A.Gade, T.Ginter, S.Giraud, K.W.Kemper, J.Li, W.Nazarewicz, S.Noji, J.Pereira, L.A.Riley, M.Smith, D.Weisshaar, R.G.T.Zegers

Hexadecapole strength in the rare isotopes ^{74, 76}Kr

NUCLEAR REACTIONS ¹H(⁷⁴Kr, ⁷⁴Kr'), (⁷⁶Kr, ⁷⁶Kr'), E(cm)=100 MeV, [secondary ^74,76Kr beams from ⁹Be(⁷⁸Kr, X), E=150 MeV/nucleon primary reaction, followed by separation of fragments using A1900 separator]; measured Doppler-corrected Eγ, Iγ, (particle)γ-coin using NSCL-MSU using NSCL/Ursinus Liquid Hydrogen (LH2) Target, eight GRETINA modules of 36-fold segmented HPGe detectors for γ radiation, and S800 spectrograph for projectile-like reaction residues. ^74,76Kr; deduced levels, Jπ, β₂ for the first 2+ state and β₄ and B(E4)(W.u.) for the first 4+ state from inelastic proton scattering experiments in inverse kinematics. Comparison to coupled-channels calculations, and nuclear density functional theory (DFT) calculations using the Skyrme SkM* and UNEDF1 energy density functionals, covariant NL3* and DD-PC1 energy density functionals. Systematics and theoretical predictions of β₂, β₄ and B(E4)(W.u.) for ^{74,76,78,80,82,84,86}Kr.

doi: 10.1016/j.physletb.2023.137932