A revised B(E2; 2+1 -> 0+1) value in the semi-magic nucleus 210Po

D. Kocheva, G. Rainovski, J Jolie, N. Pietralla, A. Blazhev, A. Astier, R. Altenkirch, S. Ansari, Th. Braunroth, M. L. Cortes, A. Dewald, F. Diel, M. Djongolov, Ch. Fransen, K. A. Gladnishki, A. Hennig, V. Karayonchev, James Keatings, E. Kluge, J. LitzingerC. Mueller-Gatermann, P. Petkov, M. Rudigier, Marcus Scheck, Ph. Scholz, Pietro Spagnoletti, M. Spieker, C. Stahl, R. Stegmann, M. Stoyanova, P. Thoele, N. Warr, V. Werner, W. Witt, D. Woelk, K. O. Zell, P. Van Isacker, V. Yu. Ponomarev

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The lifetimes of the 2+1, the 2+2 and the 31 states of 210Po have been measured in the 208Pb(12C,10Be)210Po transfer reaction by the Doppler-shift attenuation method. The result for the lifetime of the 2+1 state is about three times shorter than the adopted value. However, the new value still does not allow for a consistent description of the properties of the yrast 2+1, 4+1, 6+1, and 8+1 states of 210Po in the framework of nuclear shell models. Quasi-particle Phonon Model (QPM) calculations also cannot overcome this problem thus indicating the existence of a peculiarity which is neglected in both theoretical approaches.
Original languageEnglish
Article number12367
JournalEuropean Physical Journal A
Publication statusPublished - 7 Sep 2017


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