Phys.Rev. C 95, 034302 (2017)

T.W.Hagen, A.Gorgen, W.Korten, L.Grente, M.-D.Salsac, F.Farget, I.Ragnarsson, T.Braunroth, B.Bruyneel, I.Celikovic, E.Clement, G.de France, O.Delaune, A.Dewald, A.Dijon, M.Hackstein, B.Jacquot, J.Litzinger, J.Ljungvall, C.Louchart, C.Michelagnoli, D.R.Napoli, F.Recchia, W.Rother, E.Sahin, S.Siem, B.Sulignano, Ch.Theisen, J.J.Valiente-Dobon

Evolution of nuclear shapes in odd-mass yttrium and niobium isotopes from lifetime measurements following fission reactions

NUCLEAR REACTIONS ⁹Be(²³⁸U, F)⁹²Y/⁹³Y/⁹⁴Y/⁹⁵Y/⁹⁶Y/⁹⁷Y/⁹⁸Y/⁹⁹Y/¹⁰⁰Y/¹⁰¹Y/¹⁰²Y/¹⁰³Y/⁹⁷Nb/⁹⁸Nb/⁹⁹Nb/¹⁰⁰Nb/¹⁰¹Nb/¹⁰²Nb/¹⁰³Nb/¹⁰⁴Nb/¹⁰⁵Nb/¹⁰⁶Nb/¹⁰⁷Nb/¹⁰⁸Nb, E=6.2 MeV/nucleon; measured energy loss ΔE versus the total energy, mass versus mass-to-charge ratio, mass distributions of fission fragments, Eγ, Iγ, (fission fragment)γ-coin, level half-lives by recoil-distance Doppler-shift (RDDS) method using VAMOS++ spectrometer and EXOGAM array at GANIL facility. ^99,101Y, ^{101,103,105,107}Nb; deduced high-spin levels, J, π, rotational bands, configurations, B(M1), B(E2). Comparison with triaxial particle-rotor calculations.

doi: 10.1103/PhysRevC.95.034302