A1 Journal article (refereed)
Decay studies of the long-lived states in Tl186 (2020)


Stryjczyk, M.; Andel, B.; Andreyev, A. N.; Cubiss, J.; Pakarinen, J.; Rezynkina, K.; Van Duppen, P.; Antalic, S.; Berry, T.; Borge, M. J. G.; Clisu, C.; Cox, D. M.; De Witte, H.; Fraile, L. M. et al. (2020). Decay studies of the long-lived states in Tl186. Physical Review C, 102 (2), 024322. DOI: 10.1103/PhysRevC.102.024322


JYU authors or editors


Publication details

All authors or editors: Stryjczyk, M.; Andel, B.; Andreyev, A. N.; Cubiss, J.; Pakarinen, J.; Rezynkina, K.; Van Duppen, P.; Antalic, S.; Berry, T.; Borge, M. J. G.; et al.

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2020

Volume: 102

Issue number: 2

Article number: 024322

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: http://doi.org/10.1103/PhysRevC.102.024322

Open Access: Open access publication published in a hybrid channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/71512

Publication is parallel published: https://arxiv.org/abs/2006.02161


Abstract

Decay spectroscopy of the long-lived states in 186Tl has been performed at the ISOLDE Decay Station at ISOLDE, CERN. The α decay from the low-spin (2−) state in 186Tl was observed for the first time and a half-life of 3.4+0.5−0.4 s was determined. Based on the α-decay energy, the relative positions of the long-lived states were fixed, with the (2−) state as the ground state, the 7(+) state at 77(56) keV, and the 10(−) state at 451(56) keV. The level scheme of the internal decay of the 186Tl(10(−)) state [T1/2=3.40(9) s], which was known to decay solely through emission of 374-keV γ-ray transition, was extended and a lower limit for the β-decay branching bβ>5.9(3)% was determined. The extracted retardation factors for the γ decay of the 10(−) state were compared to the available data in neighboring odd-odd thallium isotopes indicating the importance of the πd3/2 shell in the isomeric decay and significant structure differences between 184Tl and 186Tl.


Keywords: nuclear physics

Free keywords: alpha decay; electromagnetic transitions; isomer decays; lifetimes and widths; nuclear structure and decays


Contributing organizations


Related projects

Structure of Intruder States in heavy Nuclei
Pakarinen, Janne
Academy of Finland
01/09/2017-31/12/2021


Ministry reporting: Yes

Preliminary JUFO rating: 2


Last updated on 2020-28-10 at 08:52