Excited states in 217Ra populated in the α decay of 221Th

Parr, E.; Smith, J. F.; Greenlees, P. T.; Auranen, K.; Chapman, R.; Cullen, D. M.; Grahn, T.; Grocutt, L.; Herzáň, A.; Herzberg, R.-D.; Hodge, D.; Jakobsson, U.; Julin, R.; Juutinen, S.; Konki, J.; McPeake, C.; Mengoni, D.; Mistry, A. K.; Mulholland, K. F.; O'Neill, G. G.; Pakarinen, J.; Papadakis, P.; Partanen, J.; Peura, P.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Scheck, M.; Scholey, C.; Siciliano, M.; Smolen, M.; Sorri, J.; Stolze, S.; Taylor, M. J.; Uusitalo, J.

doi:10.1103/physrevc.102.054335

Publisher's PDF

Katso/Avaa

862.7 Kb

Lataukset:

Show download details Hide download details

Parr, E., Smith, J. F., Greenlees, P. T., Auranen, K., Chapman, R., Cullen, D. M., Grahn, T., Grocutt, L., Herzáň, A., Herzberg, R.-D., Hodge, D., Jakobsson, U., Julin, R., Juutinen, S., Konki, J., McPeake, C., Mengoni, D., Mistry, A. K., Mulholland, K. F., . . . Uusitalo, J. (2020). Excited states in 217Ra populated in the α decay of 221Th. Physical Review C, 102(5), Article 054335. https://doi.org/10.1103/physrevc.102.054335

Julkaistu sarjassa

Physical Review C

Tekijät

Parr, E. |

Smith, J. F. |

Greenlees, P. T. |

Auranen, K. |

Chapman, R. |

Cullen, D. M. |

Grahn, T. |

Grocutt, L. |

Herzáň, A. |

Herzberg, R.-D. |

Hodge, D. |

Jakobsson, U. |

Julin, R. |

Juutinen, S. |

Konki, J. |

McPeake, C. |

Mengoni, D. |

Mistry, A. K. |

Mulholland, K. F. |

O'Neill, G. G. |

Pakarinen, J. |

Papadakis, P. |

Partanen, J. |

Peura, P. |

Rahkila, P. |

Ruotsalainen, P. |

Sandzelius, M. |

Sarén, J. |

Scheck, M. |

Scholey, C. |

Siciliano, M. |

Smolen, M. |

Sorri, J. |

Stolze, S. |

Taylor, M. J. |

Uusitalo, J.

Päivämäärä

2020

Oppiaine

Ydin- ja kiihdytinfysiikan huippuyksikkö Fysiikka Kiihdytinlaboratorio Centre of Excellence in Nuclear and Accelerator Based Physics Physics Accelerator Laboratory

Tekijänoikeudet

Fine structure in the α decay of 22190Th, populating excited states in 21788Ra, was studied using αγ-coincidence spectroscopy. Two α-decay branches from 221Th have been newly observed, with Eα(keV)[bα(%)]=7951(8)[0.14(3)] and 8247(3)[1.51(12)], together with three previously known branches. Also, two new states in 217Ra were identified at E = 177 and 227 keV. The ground-state configurations of the odd-A, N = 131 transitional isotones above 208Pb are interpreted from their α-decay fine structure systematics and considered in terms of predictions using spherical shell and reflection-asymmetric models.

Julkaisija

American Physical Society (APS)

ISSN Hae Julkaisufoorumista

2469-9985

Lisätietoja rahoituksesta

This work is supported in part by the following bodies: STFC (UK) under Grant Award No. ST/L005808/1 (UWS); the EU Seventh Framework Programme, Integrating Activities Transnational Access, Project No. 262010 (ENSAR); the Academy of Finland under the Finnish Centre of Excellence Programme (Nuclear and Accelerator Based Physics Programme at JYFL); the Scottish Universities Physics Alliance (SUPA); ... showmore

Lisenssi

Ellei muuten mainita, aineiston lisenssi on In Copyright

Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.

Impact of the surface energy coefficient on the deformation properties of atomic nuclei as predicted by Skyrme energy density functionals

Ryssens, W.; Bender, M.; Bennaceur, Karim; Heenen, P.-H.; Meyer, J. (American Physical Society, 2019)

Background: In the framework of nuclear energy density functional (EDF) methods, many nuclear phenomena are related to the deformation of intrinsic states. Their accurate modeling relies on the correct description of the ...
Precision measurement of the magnetic octupole moment in 45Sc as a test for state-of-the-art atomic- and nuclear-structure theory

de Groote, R.P.; Moreno, J.; Dobaczewsk,i J.; Koszorús, Á.; Moore, I.; Reponen, M.; Sahoo, B.K.; Yuan, C. (Elsevier BV, 2022)

We report on measurements of the hyperfine A, B and C -constants of the 3d4s2 2 D5/2 and 3d4s2 2 D3/2 atomic states in 45Sc. High-precision atomic calculations of the hyperfine fields of these states and second-order ...
Precision mass measurements of 67Fe and 69,70Co: Nuclear structure toward N = 40 and impact on r-process reaction rates

Canete, L.; Giraud, S.; Kankainen, A.; Bastin, B.; Nowacki, F.; Poves, A.; Ascher, P.; Eronen, T.; Alcindor, V.; Jokinen, A.; Khanam, A.; Moore, I. D.; Nesterenko, D. A.; De Oliveira Santos, F.; Penttilä, H.; Petrone, C.; Pohjalainen, I.; de Roubin, A.; Rubchenya, V. A.; Vilen, M.; Äystö, J. (American Physical Society, 2020)

Accurate mass measurements of neutron-rich iron and cobalt isotopes 67Fe and 69,70Co have been realized with the JYFLTRAP double Penning-trap mass spectrometer. With novel ion-manipulation techniques, the masses of the ...
Towards a novel energy density functional for beyond-mean-field calculations with pairing and deformation

Haverinen, Tiia; Kortelainen, Markus; Dobaczewski, J.; Bennaceur, K. (Jagellonian University, 2019)

We take an additional step towards the optimization of the novel finite-range pseudopotential at a constrained Hartree–Fock–Bogolyubov level and implement an optimization procedure within an axial code using harmonic ...
Model nuclear energy density functionals derived from ab initio calculations

Salvioni, G.; Dobaczewski, J.; Barbieri, C.; Carlsson, G.; Idini, A.; Pastore, A. (Institute of Physics, 2020)

We present the first application of a new approach, proposed in (2016J.Phys.G:Nucl.Part.Phys.4304LT01) to derive coupling constants of the Skyrme energy density functional (EDF) fromab initioHamiltonian. By perturbing theab ...