Low collectivity of the 2(1)(+) state of Po-212

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 & 22 others J. M. Keatings, E. Kluge, Th. Kröll, J. Litzinger, K. Moschner, C. Müller-Gatermann, P. Petkov, M. Scheck, Ph. Scholz, T. Schmidt, P. Spagnoletti, C. Stahl, R. Stegmann, A. Stolz, A. Vogt, N. Warr, V. Werner, D. Wölk, J. C. Zamora, K. O. Zell, V. Yu. Ponomarev, P. Van Isacker

Research output: Contribution to journalArticle

1 Downloads (Pure)

Abstract

The lifetime of the 2(1)(+) state of Po-212 was measured in the Pb-208(C-12, Be-8)Po-212 transfer reaction by gamma-ray spectroscopy employing the recoil distance Doppler shift (RDDS) method. The derived absolute B(E2) value of 2.6(3) W.u. indicates a low collectivity and contradicts previous claims of alpha-cluster components in the structure of the 2(1)(+) state. It is demonstrated that a consistent description of the properties of the 2(1)(+)-4(1)(+)-6(1)(+)-8(1)(+) sequence in Po-212 cannot be achieved in the framework of a single-j shell-model calculation, either. This puzzle is traced to the properties of the seniority-2 configurations in Pb-210 and Po-210.
Original languageEnglish
Article number044305
JournalPhysical Review C
Volume96
Issue number4
DOIs
Publication statusPublished - 5 Oct 2017

Cite this

Kocheva, D., Rainovski, G., Jolie, J., Pietralla, N., Blazhev, A., Altenkirch, R., ... Van Isacker, P. (2017). Low collectivity of the 2(1)(+) state of Po-212. Physical Review C, 96(4), [044305]. https://doi.org/10.1103/PhysRevC.96.044305
Kocheva, D. ; Rainovski, G. ; Jolie, J. ; Pietralla, N. ; Blazhev, A. ; Altenkirch, R. ; Ansari, S. ; Astier, A. ; Bast, M. ; Beckers, M. ; Braunroth, Th. ; Cappellazzo, M. ; Dewald, A. ; Diel, F. ; Djongolov, M. ; Fransen, C. ; Gladnishki, K. ; Goldkuhle, A. ; Hennig, A. ; Karayonchev, V. ; Keatings, J. M. ; Kluge, E. ; Kröll, Th. ; Litzinger, J. ; Moschner, K. ; Müller-Gatermann, C. ; Petkov, P. ; Scheck, M. ; Scholz, Ph. ; Schmidt, T. ; Spagnoletti, P. ; Stahl, C. ; Stegmann, R. ; Stolz, A. ; Vogt, A. ; Warr, N. ; Werner, V. ; Wölk, D. ; Zamora, J. C. ; Zell, K. O. ; Ponomarev, V. Yu. ; Van Isacker, P. / Low collectivity of the 2(1)(+) state of Po-212. In: Physical Review C. 2017 ; Vol. 96, No. 4.
@article{2083dfdc614a4d32a83842197c925e1a,
title = "Low collectivity of the 2(1)(+) state of Po-212",
abstract = "The lifetime of the 2(1)(+) state of Po-212 was measured in the Pb-208(C-12, Be-8)Po-212 transfer reaction by gamma-ray spectroscopy employing the recoil distance Doppler shift (RDDS) method. The derived absolute B(E2) value of 2.6(3) W.u. indicates a low collectivity and contradicts previous claims of alpha-cluster components in the structure of the 2(1)(+) state. It is demonstrated that a consistent description of the properties of the 2(1)(+)-4(1)(+)-6(1)(+)-8(1)(+) sequence in Po-212 cannot be achieved in the framework of a single-j shell-model calculation, either. This puzzle is traced to the properties of the seniority-2 configurations in Pb-210 and Po-210.",
author = "D. Kocheva and G. Rainovski and J. Jolie and N. Pietralla and A. Blazhev and R. Altenkirch and S. Ansari and A. Astier and M. Bast and M. Beckers and Th. Braunroth and M. Cappellazzo and A. Dewald and F. Diel and M. Djongolov and C. Fransen and K. Gladnishki and A. Goldkuhle and A. Hennig and V. Karayonchev and Keatings, {J. M.} and E. Kluge and Th. Kr{\"o}ll and J. Litzinger and K. Moschner and C. M{\"u}ller-Gatermann and P. Petkov and M. Scheck and Ph. Scholz and T. Schmidt and P. Spagnoletti and C. Stahl and R. Stegmann and A. Stolz and A. Vogt and N. Warr and V. Werner and D. W{\"o}lk and Zamora, {J. C.} and Zell, {K. O.} and Ponomarev, {V. Yu.} and {Van Isacker}, P.",
year = "2017",
month = "10",
day = "5",
doi = "10.1103/PhysRevC.96.044305",
language = "English",
volume = "96",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "4",

}

Kocheva, D, Rainovski, G, Jolie, J, Pietralla, N, Blazhev, A, Altenkirch, R, Ansari, S, Astier, A, Bast, M, Beckers, M, Braunroth, T, Cappellazzo, M, Dewald, A, Diel, F, Djongolov, M, Fransen, C, Gladnishki, K, Goldkuhle, A, Hennig, A, Karayonchev, V, Keatings, JM, Kluge, E, Kröll, T, Litzinger, J, Moschner, K, Müller-Gatermann, C, Petkov, P, Scheck, M, Scholz, P, Schmidt, T, Spagnoletti, P, Stahl, C, Stegmann, R, Stolz, A, Vogt, A, Warr, N, Werner, V, Wölk, D, Zamora, JC, Zell, KO, Ponomarev, VY & Van Isacker, P 2017, 'Low collectivity of the 2(1)(+) state of Po-212' Physical Review C, vol. 96, no. 4, 044305. https://doi.org/10.1103/PhysRevC.96.044305

Low collectivity of the 2(1)(+) state of Po-212. / Kocheva, D.; Rainovski, G.; Jolie, J.; Pietralla, N.; Blazhev, A.; Altenkirch, R.; Ansari, S.; Astier, A.; Bast, M.; Beckers, M.; Braunroth, Th.; Cappellazzo, M.; Dewald, A.; Diel, F.; Djongolov, M.; Fransen, C.; Gladnishki, K.; Goldkuhle, A.; Hennig, A.; Karayonchev, V.; Keatings, J. M.; Kluge, E.; Kröll, Th.; Litzinger, J.; Moschner, K.; Müller-Gatermann, C.; Petkov, P.; Scheck, M.; Scholz, Ph.; Schmidt, T.; Spagnoletti, P.; Stahl, C.; Stegmann, R.; Stolz, A.; Vogt, A.; Warr, N.; Werner, V.; Wölk, D.; Zamora, J. C.; Zell, K. O.; Ponomarev, V. Yu.; Van Isacker, P.

In: Physical Review C, Vol. 96, No. 4, 044305, 05.10.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Low collectivity of the 2(1)(+) state of Po-212

AU - Kocheva, D.

AU - Rainovski, G.

AU - Jolie, J.

AU - Pietralla, N.

AU - Blazhev, A.

AU - Altenkirch, R.

AU - Ansari, S.

AU - Astier, A.

AU - Bast, M.

AU - Beckers, M.

AU - Braunroth, Th.

AU - Cappellazzo, M.

AU - Dewald, A.

AU - Diel, F.

AU - Djongolov, M.

AU - Fransen, C.

AU - Gladnishki, K.

AU - Goldkuhle, A.

AU - Hennig, A.

AU - Karayonchev, V.

AU - Keatings, J. M.

AU - Kluge, E.

AU - Kröll, Th.

AU - Litzinger, J.

AU - Moschner, K.

AU - Müller-Gatermann, C.

AU - Petkov, P.

AU - Scheck, M.

AU - Scholz, Ph.

AU - Schmidt, T.

AU - Spagnoletti, P.

AU - Stahl, C.

AU - Stegmann, R.

AU - Stolz, A.

AU - Vogt, A.

AU - Warr, N.

AU - Werner, V.

AU - Wölk, D.

AU - Zamora, J. C.

AU - Zell, K. O.

AU - Ponomarev, V. Yu.

AU - Van Isacker, P.

PY - 2017/10/5

Y1 - 2017/10/5

N2 - The lifetime of the 2(1)(+) state of Po-212 was measured in the Pb-208(C-12, Be-8)Po-212 transfer reaction by gamma-ray spectroscopy employing the recoil distance Doppler shift (RDDS) method. The derived absolute B(E2) value of 2.6(3) W.u. indicates a low collectivity and contradicts previous claims of alpha-cluster components in the structure of the 2(1)(+) state. It is demonstrated that a consistent description of the properties of the 2(1)(+)-4(1)(+)-6(1)(+)-8(1)(+) sequence in Po-212 cannot be achieved in the framework of a single-j shell-model calculation, either. This puzzle is traced to the properties of the seniority-2 configurations in Pb-210 and Po-210.

AB - The lifetime of the 2(1)(+) state of Po-212 was measured in the Pb-208(C-12, Be-8)Po-212 transfer reaction by gamma-ray spectroscopy employing the recoil distance Doppler shift (RDDS) method. The derived absolute B(E2) value of 2.6(3) W.u. indicates a low collectivity and contradicts previous claims of alpha-cluster components in the structure of the 2(1)(+) state. It is demonstrated that a consistent description of the properties of the 2(1)(+)-4(1)(+)-6(1)(+)-8(1)(+) sequence in Po-212 cannot be achieved in the framework of a single-j shell-model calculation, either. This puzzle is traced to the properties of the seniority-2 configurations in Pb-210 and Po-210.

U2 - 10.1103/PhysRevC.96.044305

DO - 10.1103/PhysRevC.96.044305

M3 - Article

VL - 96

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 4

M1 - 044305

ER -

Kocheva D, Rainovski G, Jolie J, Pietralla N, Blazhev A, Altenkirch R et al. Low collectivity of the 2(1)(+) state of Po-212. Physical Review C. 2017 Oct 5;96(4). 044305. https://doi.org/10.1103/PhysRevC.96.044305