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Decay studies of the long-lived states in Tl 186

Stryjczyk, M. ; Andel, B. ; Andreyev, A. N. ; Cubiss, J. ; Pakarinen, J. ; Rezynkina, K. ; Van Duppen, P. ; Antalic, S. ; Berry, T. and Borge, M. J.G. , et al. (2020) In Physical Review C 102(2).
Abstract

Decay spectroscopy of the long-lived states in Tl186 has been performed at the ISOLDE Decay Station at ISOLDE, CERN. The α decay from the low-spin (2-) state in Tl186 was observed for the first time and a half-life of 3.4-0.4+0.5 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 Tl186(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... (More)

Decay spectroscopy of the long-lived states in Tl186 has been performed at the ISOLDE Decay Station at ISOLDE, CERN. The α decay from the low-spin (2-) state in Tl186 was observed for the first time and a half-life of 3.4-0.4+0.5 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 Tl186(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 Tl184 and Tl186.

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Contribution to journal
publication status
published
subject
in
Physical Review C
volume
102
issue
2
article number
024322
publisher
American Physical Society
external identifiers
  • scopus:85092085358
ISSN
2469-9985
DOI
10.1103/PhysRevC.102.024322
language
English
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yes
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04b24209-f482-4beb-8a1b-d6069a248286
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2020-11-04 07:45:22
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2020-12-29 02:40:50
@article{04b24209-f482-4beb-8a1b-d6069a248286,
  abstract     = {<p>Decay spectroscopy of the long-lived states in Tl186 has been performed at the ISOLDE Decay Station at ISOLDE, CERN. The α decay from the low-spin (2-) state in Tl186 was observed for the first time and a half-life of 3.4-0.4+0.5 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 Tl186(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&gt;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 Tl184 and Tl186.</p>},
  author       = {Stryjczyk, M. and Andel, B. and Andreyev, A. N. and Cubiss, J. and Pakarinen, J. and Rezynkina, K. and Van Duppen, P. and Antalic, S. and Berry, T. and Borge, M. J.G. and Clisu, C. and Cox, D. M. and De Witte, H. and Fraile, L. M. and Fynbo, H. O.U. and Gaffney, L. P. and Harkness-Brennan, L. J. and Huyse, M. and Illana, A. and Judson, D. S. and Konki, J. and Kurcewicz, J. and Lazarus, I. and Lica, R. and Madurga, M. and Marginean, N. and Marginean, R. and Mihai, C. and Mosat, P. and Nacher, E. and Negret, A. and Ojala, J. and Ovejas, J. D. and Page, R. D. and Papadakis, P. and Pascu, S. and Perea, A. and Podolyák, Zs and Pucknell, V. and Rapisarda, E. and Rotaru, F. and Sotty, C. and Tengblad, O. and Vedia, V. and Viñals, S. and Wadsworth, R. and Warr, N. and Wrzosek-Lipska, K.},
  issn         = {2469-9985},
  language     = {eng},
  number       = {2},
  publisher    = {American Physical Society},
  series       = {Physical Review C},
  title        = {Decay studies of the long-lived states in Tl 186},
  url          = {http://dx.doi.org/10.1103/PhysRevC.102.024322},
  doi          = {10.1103/PhysRevC.102.024322},
  volume       = {102},
  year         = {2020},
}