Intruder states in odd-odd Tl nuclei: The completion of a unique set of intruder systematics

Huyse, M.; Coenen, E.; Deneffe, K.; Duppen, P. Van; Heyde, K.; Maldeghem, J. Van

doi:10.1016/0370-2693(88)91142-2

Cited by 42 publications

(16 citation statements)

References 12 publications

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“…The allocation of the states in the odd-odd thallium isotopes within each full multiplet will primarily depend on the specific proton-neutron residual interaction in these [j p ⊗ j n ]J π configurations. This has been thoroughly discussed by several authors [6,[29][30][31][32]. The two lowest states in Fig.…”

Section: Discussionmentioning

confidence: 91%

Internal decay of the(10−)intruder state inTl184

et al. 2015

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Decay spectroscopy of 184 Tl has been performed at the CERN Isotope Separator On-Line (ISOLDE) facility. An excitation energy of 506.1(1) keV and a half-life of 47.1(7) ms of the intruder based (10 − ) state have been extracted. The internal decay characteristics of this state are determined and discussed, extending the systematics of such states in the even-mass thallium nuclei below neutron midshell at N = 104. The retardation factors of the isomeric M2 and E3 transitions are deduced and compared with retardation factors in neighboring odd-mass and even-mass thallium isotopes. The new information is combined with a review of hindered and unhindered α-decay data of [187][188][189][190][191][192] Bi populating levels in daughter nuclei [183][184][185][186][187][188] Tl and supports the interpretation of the intruder character of the (10 − ) state in 184 Tl.

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Section: Discussionmentioning

confidence: 91%

Internal decay of the(10−)intruder state inTl184

et al. 2015

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“…Spectroscopic studies of the odd-odd Tl and Au isotopes are difficult, as even at low excitation energy the level density can be relatively high owing to the coupling of different valence protons and neutrons. Such coupling results in a multitude of rather closely spaced, often isomeric, configurations which have been observed in these nuclei; see, e.g., the previous studies of the heavier odd-odd nuclei [188][189][190][191][192][193][194][195][196][197][198][199][200] Tl [31][32][33]. Moreover, an inspection of the Nilsson diagrams in the region of interest (Fig.…”

Section: -6mentioning

confidence: 99%

β-delayed fission andαdecay of178Tl

Liberati¹,

Andreyev²,

Antalic³

et al. 2013

Phys. Rev. C

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ReuseItems deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.PHYSICAL REVIEW C 88, 044322 (2013) A detailed nuclear-decay spectroscopy study of the neutron-deficient isotope 178 Tl has been performed using the highly selective Resonance Ionization Laser Ion Source and ISOLDE mass separator (CERN), which allowed a unique isobarically pure beam of 178 Tl to be produced. The first identification of the β-delayed fission of this isotope was made and its probability P βDF ( 178 Tl) = 0.15(6)% was determined. An asymmetric fission fragment mass distribution of the daughter isotope 178 Hg (populated by the β decay of 178 Tl) was deduced based on the measured fission fragment energies. The fine-structure α-decay pattern of 178 Tl allowed the low-energy states in the daughter nucleus 174 Au to be studied.

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“…3 the excitation energy of the β-decaying 7 + isomer [28] was set to be zero as a reference because of its unknown excitation energy. As stated by Van Duppen et al [23,24], unhindered α decay through the Z = 82 shell closure can identify intruder states in the daughter nuclei, and observation of unhindered α decay provided an ideal tool for identifying states with the same spin, parity, and configuration as the α-decaying parent state. The α-γ correlation measurements in the α decay of 194 Bi [23,24] established the spin and parity of (πh 9/2 ⊗ νi 13/2 ) 10 − for the state located 300 keV above the 7 + isomer in 190 Tl.…”

Section: Experiments and Resultsmentioning

confidence: 96%

“…Prior to this work, information on the low-lying excited levels in 190 Tl was obtained through the studies of the β + /EC decay of 190 Pb [25] and the α decay of 194 Bi [23,24]. An early inbeam work [26] identified a long-lived isomer with an oblate configuration of πh 9/2 ⊗ νi 13/2 in 190 Tl, and three γ lines were suggested to be above the isomer.…”

Section: Introductionmentioning

confidence: 98%

“…As a consequence of this, interpretation of the distinctive energy staggering between the odd and the even spin member in these bands has remained uncertain, and two completely different models were proposed to interpret the staggering [21,22]. Fortunately, the α-γ correlation measurements in the α-decay studies of odd-odd Bi isotopes provided detailed information on the low-lying normal and intruder excited states in the daughter 184−192 Tl nuclei [23,24]. This could help us unambiguously determine the spin and parity values of the oblate πh 9/2 ⊗ νi 13/2 bands in certain odd-odd Tl nuclei.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Low-spin signature inversion in theπh9/2⊗νi13/2oblate band of
Xie
¹
,
Zhou
²
,
Zhang
³

et al. 2005
Phys. Rev. C
11
0
7
0
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High-spin states in 190 Tl have been studied experimentally by using the 160 Gd( 35 Cl,5n) fusion-evaporation reaction at beam energies of 167 and 175 MeV. A rotational band built on the πh 9/2 ⊗ νi 13/2 configuration with oblate deformation has been established for 190 Tl. Spin values are assigned by adopting the results from α-γ decay work for 194 Bi found in the literature. With the configuration and spin-parity assignments, the low-spin signature inversion has been revealed for the πh 9/2 ⊗ νi 13/2 oblate band in 190 Tl. It is the first experimental observation of low-spin signature inversion for a band associated with the oblate πh 9/2 ⊗ νi 13/2 configuration. The low-spin signature inversion for the oblate πh 9/2 ⊗ νi 13/2 band can be interpreted by the two-quasiparticle-plus-rotor model including a J-dependent p-n residual interaction.

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Intruder states in odd-odd Tl nuclei: The completion of a unique set of intruder systematics

Cited by 42 publications

References 12 publications

Internal decay of the(10−)intruder state inTl184

Internal decay of the(10−)intruder state inTl184

β-delayed fission andαdecay of178Tl

Low-spin signature inversion in theπh9/2⊗νi13/2oblate band of
Xie
¹
,
Zhou
²
,
Zhang
³

et al. 2005
Phys. Rev. C
11
0
7
0
View full text Add to dashboard Cite

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Intruder states in odd-odd Tl nuclei: The completion of a unique set of intruder systematics

Cited by 42 publications

References 12 publications

Internal decay of the(10−)intruder state inTl184

Internal decay of the(10−)intruder state inTl184

β-delayed fission andαdecay of178Tl

Low-spin signature inversion in theπh9/2⊗νi13/2oblate band ofXie1, Zhou2, Zhang3 et al. 2005Phys. Rev. C11070View full textAdd to dashboardCite

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Low-spin signature inversion in theπh9/2⊗νi13/2oblate band of
Xie
¹
,
Zhou
²
,
Zhang
³

et al. 2005
Phys. Rev. C
11
0
7
0
View full text Add to dashboard Cite