Internal decay of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo>(</mml:mo><mml:msup><mml:mn>10</mml:mn><mml:mo>−</mml:mo></mml:msup><mml:mo>)</mml:mo></mml:math>intruder state in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Tl</mml:mi><mml:mprescripts /><mml:none /><mml:mn>184</mml:mn></mml:mmultiscripts></mml:math>

Beveren, C. Van; Andreyev, A. N.; Barzakh, A. E.; Cocolios, T. E.; Fedorov, D. V.; Fedosseev, V. N.; Ferrer, R.; Huyse, M.; Köster, U.; Lane, John F.; Liberati, V.; Lynch, K. M.; Marsh, B. A.; Procter, T.J.; Radulov, D.; Rapisarda, E.; Sandhu, Kirandeep; Seliverstov, M. D.; Duppen, P. Van; Venhart, M.; Veselský, M.

doi:10.1103/physrevc.92.014325

Cited by 8 publications

(32 citation statements)

References 33 publications

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“…Tentative spin assignments, based on (α/β)-decay systematics, were proposed for 180,182,184 Tl in Refs. [12][13][14]20]. Some of these were substantiated by the [19].…”

Section: Resultsmentioning

confidence: 97%

“…9, the magnetic moment of 184 Tl drops out from the trend of the heavier Tl isotopes (and from the prediction of the additivity relation). This may be explained by the admixture of the [π 2d 3/2 × ν1i 13 …”

Section: Fig 10 Relative Changes In δ Rmentioning

confidence: 99%

“…Partial results for β-delayed fission and nuclei decay spectroscopy measurements of 178,180,182,184 Tl are reported in Refs. [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…It should be noted that the magnetic moment of the neutron 13/2 state grows rapidly when the deformation increases [15]. Therefore it would be misleading to use magnetic moments of adjacent 185 Hg or 185 Pb as μ n (ν1i 13 Fig. 3).…”

mentioning

confidence: 99%

“…In the α-decay study of 188 Bi [10], an additional long-lived (10 − ) state at 500(5) keV above the (7 + ) state was found and assigned to an intruder [π 1h 9/2 × ν1i 13/2 ] 10 − state. In our subsequent experiments at ISOLDE, the excitation energy of the 10 − isomer was measured with an improved precision as 506.1(1) keV, and its half-life of 47.1(7) ms was determined for the first time [13].…”

mentioning

confidence: 99%

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Changes in mean-squared charge radii and magnetic moments of Tl179–184 measured by in-source laser spectroscopy

Barzakh¹,

Andreyev²,

Cocolios³

et al. 2017

Phys. Rev. C

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Hyperfine structure and isotope shifts have been measured for the ground and isomeric states in the neutrondeficient isotopes [179][180][181][182][183][184] Tl using the 276.9-nm transition. The experiment has been performed at the CERNIsotope Separator On-Line facility using the in-source resonance-ionization laser spectroscopy technique. Spins for the ground states in 179,181,183 Tl have been determined as I = 1/2. Magnetic moments and changes in the nuclear mean-square charge radii have been deduced. By applying the additivity relation for magnetic moments of the odd-odd Tl nuclei the leading configuration assignments were confirmed. A deviation of magnetic moments for isomeric states in 182,184 Tl from the trend of the heavier Tl nuclei is observed. The charge radii of the ground states of the isotopes [179][180][181][182][183][184] Tl follow the trend for isotonic (spherical) lead nuclei. The noticeable difference in charge radii for ground and isomeric states of 183,184 Tl has been observed, suggesting a larger deformation for the intruder-based 9/2 − and 10 − states compared to the ground states. An unexpected growth of the isomer shift for 183 Tl has been found.

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“…Tentative spin assignments, based on (α/β)-decay systematics, were proposed for 180,182,184 Tl in Refs. [12][13][14]20]. Some of these were substantiated by the [19].…”

Section: Resultsmentioning

confidence: 97%

Section: Fig 10 Relative Changes In δ Rmentioning

confidence: 99%

“…Partial results for β-delayed fission and nuclei decay spectroscopy measurements of 178,180,182,184 Tl are reported in Refs. [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Changes in mean-squared charge radii and magnetic moments of Tl179–184 measured by in-source laser spectroscopy

Barzakh¹,

Andreyev²,

Cocolios³

et al. 2017

Phys. Rev. C

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α-decay study of ${}^{\mathrm{182,184}}$Tl

Beveren¹,

Andreyev²,

Barzakh³

et al. 2016

J. Phys. G: Nucl. Part. Phys.

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α-decay spectroscopy of 182,184 Tl has been performed at the CERN isotope separator on-line (ISOLDE) facility. New fine-structure α decays have been observed for both isotopes. α-decay branching ratios of 0.089(19)%, 0.047 (6)% and 1.22(30)% have been deduced for the (10 − ), (7 + ) and (2 − ) states respectively in 184 Tl and a lower limit of 0.49% for the α-decay branching ratio of 182 Tl. A new half-life of 9.5(2) s for the (2 − ) state in 184 Tl and 1.9(1) s for the low-spin state in 182 Tl has been deduced. Using α-γ coincidence analysis, multiple γ rays were observed de-exciting levels in 178,180 Au fed by 182,184 Tl α decays. The γ transitions connecting these low-lying states in 178,180 Au are essential to sort the data and possibly identify bands from inbeam studies in these isotopes. Owing to the complex fine-structure α decays and limited knowledge about the structure of the daughter nuclei, only partial

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Shape coexistence studied in ${}^{\mathrm{182,184}}$Hg via theβdecay of ${}^{\mathrm{182,184}}$Tl

Rapisarda

Andreyev

Antalic

et al. 2017

J. Phys. G: Nucl. Part. Phys.

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The /EC decay of Tl to excited states in the daughter nuclei Hg has been investigated at the CERN on-line isotope mass separator facility. In both Tl nuclei two β-decaying states were observed. In the case of 184Tl, narrow-band laser spectroscopy could be used to disentangle the decay of both isomers. In 182Hg a precise energy of 335 (1) keV for the state was measured together with its feeding from a tentatively proposed state at 973 keV. Large conversion coefficients for the transition in Hg were measured to be 7.2 (13) and 14.2 (36), respectively, evidencing a strong E0 component.

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Internal decay of the(10−)intruder state inTl184

Cited by 8 publications

References 33 publications

Changes in mean-squared charge radii and magnetic moments of Tl179–184 measured by in-source laser spectroscopy

Changes in mean-squared charge radii and magnetic moments of Tl179–184 measured by in-source laser spectroscopy

α-decay study of ${}^{\mathrm{182,184}}$Tl

Shape coexistence studied in ${}^{\mathrm{182,184}}$Hg via theβdecay of ${}^{\mathrm{182,184}}$Tl

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