Phys.Rev. C 103, 034308 (2021)

M.A.Cardona, D.Hojman, B.Roussiere, I.Deloncle, N.Barre-Boscher, M.C.Mhamed, E.Cottereau, B.I.Dimitrov, G.Tz.Gavrilov, A.Gottardo, C.Lau, S.Roccia, S.Tusseau-Nenez, D.Verney, M.S.Yavahchova

¹⁴⁵Ba β^- decay: Excited states and half-lives in neutron-rich ¹⁴⁵La

RADIOACTIVITY ¹⁴⁵Ba(β^-)[from ²³⁸U(γ, F), E=bremsstrahlung beam from 50 MeV electrons]; measured Eγ, Iγ, βγ- and γγ-coin, level half-lives by βγ(t) and γγ(t) using fast timing technique with HPGe and LaBr₃(Ce) detectors at the ALTO-PARRNe facility of IPN-Orsay. ¹⁴⁵La; deduced levels, J, π, β feedings, logft, B(M1)/B(E2), configurations. Systematics of d_5/2 to g_7/2 transitions in ^{133,135,137,139,141,143,145}La. Comparison with particle rotor model (PRM) calculations. ¹⁴⁵Cs, ^144,145La, ¹⁴⁵Ce, ¹⁴⁵Pr, ¹⁴⁴Ba, ¹²⁶In; observed γ rays in βγ-coin spectra from β^- decays of these nuclides.

NUCLEAR REACTIONS ²³⁸U(γ, F)¹⁴²Cs/¹⁴²Ba/¹⁴⁴Cs/¹⁴⁵Cs/¹⁴⁵Ba/¹⁴⁶Cs/¹⁴⁶Ba, E=bremsstrahlung beam from 50 MeV electrons]; measured yields.

doi: 10.1103/PhysRevC.103.034308