Shape coexistence in the neutron-deficient lead region: A systematic study of lifetimes in the even-even Hg188-200 with the GRIFFIN spectrometer at TRIUMF

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Olaizola B., Garnsworthy A. B., Ali F. A., Andreoiu C., Ball G. C., Bernier N., ...Daha Fazla

PHYSICAL REVIEW C, cilt.100, sa.2, 2019 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 100 Sayı: 2
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1103/physrevc.100.024301
  • Dergi Adı: PHYSICAL REVIEW C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Eskişehir Osmangazi Üniversitesi Adresli: Hayır

Özet

Lifetimes of 2(1)(+) and 4(1)(+) states as well as some negative-parity and nonyrast states in Hg188-200 were measured using gamma-gamma electronic fast timing techniques with the LaBr3(Ce) detector array of the GRIFFIN spectrometer. The excited states were populated in the epsilon/beta(+) decay of J(pi) = 7(+)/2(-) 188-200Tl produced at the TRIUMF-ISAC facility. The deduced B(E2) values are compared to different interacting boson model predictions. The precision achieved in this paper over previous ones allows for a meaningful comparison with the different theoretical models of these transitional Hg isotopes, which confirms the onset of state mixing in Hg-190.