Phys.Rev. C 96, 044305 (2017)

D.Kocheva, G.Rainovski, J.Jolie, N.Pietralla, A.Blazhev, R.Altenkirch, S.Ansari, A.Astier, M.Bast, M.Beckers, Th.Braunroth, M.Cappellazzo, A.Dewald, F.Diel, M.Djongolov, C.Fransen, K.Gladnishki, A.Goldkuhle, A.Hennig, V.Karayonchev, J.M.Keatings, E.Kluge, Th.Kroll, J.Litzinger, K.Moschner, C.Muller-Gatermann, P.Petkov, M.Scheck, Ph.Scholz, T.Schmidt, P.Spagnoletti, C.Stahl, R.Stegmann, A.Stolz, A.Vogt, N.Warr, V.Werner, D.Wolk, J.C.Zamora, K.O.Zell, V.Yu.Ponomarev, P.Van Isacker

Low collectivity of the 2⁺₁ state of ²¹²Po

NUCLEAR REACTIONS ²⁰⁸Pb(¹²C, ⁸Be)²¹²Po, E=64 MeV; measured Eγ, Iγ, (particle)γ-coin, half-life of the first 2+ state by recoil-distance Doppler-shift (RDDS) method at the FN Tandem facility of the University of Cologne. ²¹²Po; deduced levels, J, π, B(E2). Comparisons with levels and B(E2) of ²¹⁰Po and ²¹⁰Pb, and with theoretical calculations using shell model. Systematics of B(E2) values for the first 2+ states in ²⁰Ne, ⁴⁴Ti, ⁵²Ti, ¹³⁶Te, ²¹²Po, nuclei with two valence protons and two valence neutrons.

doi: 10.1103/PhysRevC.96.044305