Excitations of two- and three-valence-proton nuclei<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>134</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Te</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>135</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">I</mml:mi></mml:math>

Saha, S.; Constantinescu, C.; Daly, P.J.; Bhattacharyya, P.; Zhang, C. T.; Fornal, B.; Broda, R.; Ahmad, I.; Seweryniak, D.; Wiedenhöver, I.; Carpenter, M. P.; Janssens, R. V. F.; Khoo, T. L.; Lauritsen, T.; Lister, C. J.; Reiter, P.

doi:10.1103/physrevc.65.017302

Cited by 34 publications

(17 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…+ i is represented by the straight The search for the 9/2 404] band on top of the 830 keV level in 97 Sr in our experiment is greatly complicated by the fact that in our data the 522 keV line is rather complex, even in time-gated spectra. The main e ect in connection with this line, seen in our data, is due to the 522.1 keV transition in a cascade depopulating the T 1=2 20 ns isomer at 5806 keV in the 134 Te isotope 21,22].…”

Section: Introductionsupporting

confidence: 50%

The ν9/2[404] orbital and the deformation in the A ∼ 100 region

et al. 2004

Self Cite

View full text Add to dashboard Cite

HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. The ν9/2[404] orbital and the deformation in the A ∼ 100 region

show abstract

Section: Introductionsupporting

confidence: 50%

The ν9/2[404] orbital and the deformation in the A ∼ 100 region

et al. 2004

Self Cite

View full text Add to dashboard Cite

show abstract

“…So in obtaining SMN5082 the π − π tbmes have been not changed. Recently, the two valence proton nucleus 134 T e [14] has been studied more extensively, compared to 134 Sn and 135 Sb nuclei. It is expected that inclusion of new experimental data of 134 T e will further improve the interaction (SMN5082).…”

Section: Formalism: Model Space and Modified Hamiltonianmentioning

confidence: 99%

“…We have initiated this effort by using a few 134 Te data. We have used the binding energy of 134 Te (-20.56) and its three excited levels 2 + , 4 + and 6 + at energies 1279, 1576 and 1692 keV [14], respectively, predominantly from the (π1g 7/2 ) 2 multiplet, to modify only four important π − π tbmes of SMN5082 and the resulting interaction is named as SMPN5082.…”

Section: Formalism: Model Space and Modified Hamiltonianmentioning

confidence: 99%

Shell model calculations with modified empirical Hamiltonian in the 132Sn region

Sarkar

2004

Eur. Phys. J. A

View full text Add to dashboard Cite

Using recent experimental information for 132 Sn region, an empirical Hamiltonian is obtained by some modifications of a Hamiltonian (CW5082) originally derived from the 208 Pb region. Shell model calculations with the new Hamiltonian shows remarkable improvement in the predictive power when compared with the available experimental results. It overcomes many limitations of the CW5082 Hamiltonian in this region, specially for N≥84 isotones. The calculated level spectra and B(E2) values with the new Hamiltonian, also compare well with the available results calculated with the CD-Bonn and SKX Hamiltonians, reflecting consistency in the wave function structure at least in the low-lying regions. Interesting behaviour of effective charges is revealed in this region. It is shown that a drastic reduction of proton effective charge is necessary for obtaining B(E2) values for the N=84 isotones. Neutron effective charge is found to be in the range (0.62 -0.72)e. We predict the spectroscopic properties of 135,136 Sn not yet known experimentally. Further improvement of the modified Hamiltonian is also initiated. PACS. 21.60.Cs Shell model -21.10.-k Properties of nuclei, nuclear energy levels -23.20.-g Electromagnetic transitions 27.60.+j 90 ≤ A ≤ 149Send offprint requests to: M. Saha Sarkar Correspondence to: mss@anp.saha.ernet.in

show abstract

“…In this work, the newly observed state at 5644 keV decaying by the emission of the 1955 keV transition, is proposed as (17 + ), resulting from the πg 2 7/2 πh 1 11/2 νh −1 11/2 configuration, based on the following considerations. In the neighboring nucleus 135 I, having the closed N = 82 shell, the lowlying positive parity states, (7/2 + , 11/2 + , 15/2 + , 17/2 + ), are mainly from the πg 3 7/2 and πg 2 7/2 πd 1 5/2 configurations [19,52]. The higher-lying yrast states, around to the πh 11/2 orbital, leading to a πg 2 7/2 πh 11/2 configuration.…”

Section: B Shell Model Calculationsmentioning

confidence: 99%

“…This is mainly because of the fact that these nuclei are at the limit of accessibility using fusion evaporation reactions, which could be used to produce the isotopes till 129 I. For heavier isotopes, either multi-nucleon transfer reactions [17] or spontaneous fission of 252 Cf [18] or 248 Cm [19][20][21] are used to study the high spin excitations. Studies of the spontaneous fission of actinides utilize the prompt high-fold γ-γ coincidence technique to identify the high spin states.…”

Section: Introductionmentioning

confidence: 99%

High-spin states above the isomers in neutron-rich iodine nuclei near N=82

Banik¹,

Bhattacharyya²,

Rejmund³

et al. 2020

Phys. Rev. C

View full text Add to dashboard Cite

Excited states of neutron rich Iodine isotopes 130−134 I above the high spin isomers have been identified using prompt-delayed γ-ray spectroscopy. The Iodine isotopes have been produced as fission fragments of fusion-fission and transfer induced fission of 9 Be(238 U, f) at a beam energy of 6.2 MeV/u. The complete (A, Z) identification was obtained using the large acceptance magnetic spectrometer VAMOS++. The AGATA γ-ray tracking array was used to detect the prompt γ rays while the delayed γ rays (in the time range of 100 ns to 200 µs) from the isomeric states were identified by the EXOGAM segmented Clover detectors, placed behind the focal plane of VAMOS++ spectrometer. The high spin states above the (8 −) isomers in 130,132 I have been populated for the first time and a new isomer in 132 I has been identified. New γ-ray transition has also been assigned to the level structure of 134 I. Prompt transitions above the 19/2 − isomer have been identified in 131,133 I, for the first time. The level structures are interpreted in terms of the systematics of odd-Z nuclei above Z = 50 shell closure and large scale shell model calculations.

show abstract

Excitations of two- and three-valence-proton nuclei134Teand135I

Cited by 34 publications

References 10 publications

The ν9/2[404] orbital and the deformation in the A ∼ 100 region

The ν9/2[404] orbital and the deformation in the A ∼ 100 region

Shell model calculations with modified empirical Hamiltonian in the 132Sn region

High-spin states above the isomers in neutron-rich iodine nuclei near N=82

Contact Info

Product

Resources

About