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Bandyopadhyay, D.; Lesher, S. R.; Fransen, C.; Boukharouba, N.; Garrett, P. E.; Green, K. L.; McEllistrem, M. T.; Yates, S. W.

doi:10.1103/physrevc.76.054308

Cited by 36 publications

(22 citation statements)

References 47 publications

(125 reference statements)

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“…In fact, it was noted [9] that the IBM-2 calculations only agreed with the data for the three-phonon levels that were yrast, whereas the nonyrast levels had serious disagreements. Similar results have now been observed for 114 Cd [31]. In the present work, the detailed spectroscopic data on low-spin levels available for a series of stable Cd isotopes are examined for the appearance of systematic deviations from expected vibrational patterns.…”

Section: Introductionsupporting

confidence: 77%

“…[9,31] and will only be briefly outlined here for completeness. In both nuclei, the observed B(E2; 0 + 3 → 2 + 2 ) values are a factor of 2 greater than calculated, whereas the observed B(E2; 2 + 2 → 2 + 1 ) values are a factor of 2 smaller than predicted.…”

Section: Discussion Of Two-phonon Candidatesmentioning

confidence: 99%

“…Comprehensive level schemes have become available for the many of the stable Cd isotopes through detailed spectroscopy, by using primarily fusion-evaporation reactions [11][12][13][14][15][16][17], inelastic scattering and transfer reactions [8,[18][19][20][21][22][23][24], the (n, n γ ) reaction [9,12,[25][26][27][28][29][30][31][32], and β decay [12][13][14][33][34][35]. These studies have provided a wealth of data not previously available.…”

Section: Introductionmentioning

confidence: 99%

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Breakdown of vibrational motion in the isotopesCd110−116

2008

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A systematic study is made of the Cd isotopes [110][111][112][113][114][115][116] Cd by making use of available experimental data and interacting boson model calculations incorporating both normal vibrational levels and intruder excitations. At the two-phonon level, the calculations appear to reproduce the data reasonably well in 110-114 Cd, whereas they break down completely for the 0 + states in 116 Cd. At the three-phonon level, systematic deviations occur across the Cd isotopic chain, revealing the breakdown of vibrational motion in low-spin states. Combined with the failure to reproduce 116 Cd at the two-phonon level, it is possible that the Cd isotopes may not represent vibrational systems and that the essential physics of their motion has been missing.

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Section: Introductionsupporting

confidence: 77%

Section: Discussion Of Two-phonon Candidatesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Breakdown of vibrational motion in the isotopesCd110−116

2008

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“…These refined peak parameters were used to establish the radiative neutron-capture decay-scheme of 114 Cd. Data from experimental papers and recent compilations [7][8][9][10] were used in the decay scheme construction. The unsuppressed spectrum was unfolded with the methodology described in detail in Ref.…”

Section: Discussionmentioning

confidence: 99%

High-resolution study of the¹¹³Cd(n,γ) spectrum by statistical decay model with discrete levels and transitions

et al. 2017

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Abstract. The gamma-ray spectrum and the decay scheme of 114 Cd obtained from a radiative neutron capture experiment on 113 Cd samples are modelled in the framework of extreme statistical model. The unfolding of the experimental spectrum with proper normalization yields a total capture cross section of 21640 b and an average gamma-ray multiplicity of 4.1. Using the extreme statistical model the development of the low energy decay scheme of 114 Cd is in progress. In the model the constant-temperature level density is used, where the temperature parameter was very sensitive to the shape of the modelled gamma-ray spectrum. Using this sensitivity T = 0.62 MeV was obtained with the constraint of good description of low energy level density and the level density at the binding energy. This is in full agreement with our earlier publication. For the description of the continuum shape of the unfolded spectrum the inclusion of low energy enhancement for the photon strength function was an important new addition.

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“…Recent studies [11][12][13][14][15], using both the (n, n ′ γ) reaction and radioactive decay, have begun to characterize the higher-lying states, especially candidate states for the three-phonon multiplet in 112,114,116 Cd. These studies have revealed consistent discrepancies between the IBM-2 model calculations, which incorporate strong mixing, and the experimental data [11,16].…”

mentioning

confidence: 99%

Detailed spectroscopy of110Cd: Evidence for weak mixing and the emergence ofγ-soft behavior

Garrett¹,

Bangay²,

Varela³

et al. 2012

Phys. Rev. C

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A study of the β + /EC decay of 110 In into levels of 110 Cd is combined with a reanalysis of data from a previous study of 110 Cd with the (n, n ′ γ) reaction with monoenergetic neutrons. The γγ coincidences from the 110 In decay leads to many new assignments of γ rays observed in the (n, n ′ γ) reaction, permitting the observation of weak low-energy transitions, and setting stringent upper limits on unobserved decay branches. The uncertainties on many of the lifetimes from the (n, n ′ γ) reaction are significantly reduced, and limits are established for the lifetimes of levels too long for a direct measurement. The absence of enhanced transitions between the previously assigned phonon states and the deformed intruder states strongly suggests that mixing between the configurations is generally weak, refuting the strong-mixing scenario as an explanation of the decay pattern of the excited 0 + states in 110 Cd. The decay pattern of the non-intruder states is suggestive of a γ-soft rotor, or O(6) nucleus, rather than a vibrational, or U (5) pattern. The existence of a 4p − 6h proton excitation in 110 Cd is also suggested.

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Investigation of phonon excitations inCd114with the(n,n'

Cited by 36 publications

References 47 publications

Breakdown of vibrational motion in the isotopesCd110−116

Breakdown of vibrational motion in the isotopesCd110−116

High-resolution study of the¹¹³Cd(n,γ) spectrum by statistical decay model with discrete levels and transitions

Detailed spectroscopy of110Cd: Evidence for weak mixing and the emergence ofγ-soft behavior

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Investigation of phonon excitations inCd114with the(n,n'

Cited by 36 publications

References 47 publications

Breakdown of vibrational motion in the isotopesCd110−116

Breakdown of vibrational motion in the isotopesCd110−116

High-resolution study of the113Cd(n,γ) spectrum by statistical decay model with discrete levels and transitions

Detailed spectroscopy of110Cd: Evidence for weak mixing and the emergence ofγ-soft behavior

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Product

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High-resolution study of the¹¹³Cd(n,γ) spectrum by statistical decay model with discrete levels and transitions