Phys.Rev. C 99, 024326 (2019)

V.Karayonchev, A.Blazhev, A.Esmaylzadeh, J.Jolie, M.Dannhoff, F.Diel, F.Dunkel, C.Fransen, L.M.Gerhard, R.-B.Gerst, L.Knafla, L.Kornwebel, C.Muller-Gatermann, J.-M.Regis, N.Warr, K.O.Zell, M.Stoyanova, P.Van Isacker

Lifetimes in ²¹¹At and their implications for the nuclear structure above ²⁰⁸Pb

NUCLEAR REACTIONS ²⁰⁸Pb(⁶Li, 3n), E=34 MeV; measured Eγ, Iγ, γγ-coin, half-lives of 13/2-, 17/2- and 23/2- levels in ²¹¹At by γγ-coin fast timing technique using HPGe detectors and LaBr₃(Ce) scintillators for γ-rays at the Institute for Nuclear Physics, University of Cologne. ²¹¹At; deduced levels, B(M1), B(E2). Comparison with shell model calculations, and previous experimental values.

NUCLEAR STRUCTURE ²⁰⁹Bi, ²¹⁰Po, ²¹¹At; calculated B(E2), magnetic dipole moments, B(M1) using two shell-model calculations: semiempirical interaction for three particles in a single j=9/2 shell, and the modified Kuo-Herling interaction in a multi-j model space. Comparison with experimental values.

doi: 10.1103/PhysRevC.99.024326