High spin structure in 130,131Ba

Kaur, Navneet; Kumar, Ashok; Mukherjee, G.; Singh, Amandeep; Kumar, Surender; Kaur, Rajbir; Singh, Varinderjit; Behera, B. R.; Singh, K. P.; Singh, Gurjot; Sharma, H. P.; Kumar, Suresh; Raju, M. Kumar; Rao, P. V. S. Rama; Muralithar, S.; Singh, R. P.; Kumar, R.; Madhvan, N.; Bhowmik, R. K.

doi:10.1140/epja/i2014-14005-2

Cited by 24 publications

(33 citation statements)

References 20 publications

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“…The bands S1 and S2o previously reported in Ref. [23] are confirmed only up to spin 18 + and 16 + , respectively. The previously reported 927-keV transition of band S1, as well as 1027-and 1040-keV transitions of band S2o are not observed and therefore not confirmed by the present data.…”

Section: Resultssupporting

confidence: 65%

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Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

et al. 2019

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Several new bands have been identified in 130 Ba, among which there is one with band-head spin 8 + . Its properties are in agreement with the Fermi-aligned νh 2 11/2 , 7/2 − [523] ⊗ 9/2 − [514] Nilsson configuration. This is the first observation of a two-quasiparticle t-band in the A=130 mass region. The t-band is fed by a dipole band involving two additional h 11/2 protons. The odd-spin partners of the proton and neutron S-bands and the ground-state band at high spins are also newly identified. The observed bands are discussed using several theoretical models, which strongly suggest the coexistence of prolate and oblate shapes polarized by rotation aligned two-proton and two-neutron configurations, as well as prolate collective rotations around axes with different orientations. With the new results, 130 Ba presents one of the best and most complete sets of collective excitations that a γ-soft nucleus can manifest at medium and high spins, revealing a diversity of shapes and rotations for the nuclei in the A = 130 mass region.

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Section: Resultssupporting

confidence: 65%

“…2 and [22]. The 11 + and 12 + levels of the tband were previously established by means of the decay-ing 441-, 540-and 981-keV transitions [23], whereas the levels with spins 8 + , 9 + , 10 + and 13 + are new. Several new transitions linking the t-band to low-lying states are identified.…”

Section: Resultsmentioning

confidence: 99%

Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

et al. 2019

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“…The decay of the isomer has been studied using conversion electron and γ spectroscopy most recently by Perkowski et al [7], while the magnetic dipole and static electric quadrupole moments have been measured by Moore et al using collinear laser spectroscopy [8]. The most recent study of the high-spin states of 130 Ba has been reported by Kaur et al [9]. However, there have been no previous reports of the rotational structure based on the 8 − isomer.…”

Section: Introductionmentioning

confidence: 99%

Identification of high- K rotation in Ba130 : Testing the consistency of electromagnetic observables

Qiang¹,

Petrache²,

Guo³

et al. 2019

Phys. Rev. C

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The band built on the K π = 8 − , T 1/2 = 9.4 ms isomer of 130 Ba has been identified, filling the gap in the systematics of the dipole bands built on the 8 − isomers in the N = 74 isotones from 128 Xe to 138 Gd. The use of the GALILEO array in conjunction with its ancillaries EUCLIDES and Neutron Wall, helped to firmly place the newly identified transitions on top of the long-lived isomer. The extracted g K and g R gyromagnetic factors are in agreement with the 7/2 + [404] ⊗ 9/2 − [514] two-neutron Nilsson configuration. Particle-rotor model calculations give an understanding of the limited degree of K mixing. The experimental information on the K π = 8 − isomer of 130 Ba is now the most complete among the K isomers of the N = 74 isotones.

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“…Nanotechnology has expanded over the past few decades and its impact span over wide range of applications found in material sciences, information technology, food technology, and in nanomedicine [1][2][3]. The latter application has drawn much attention due to wide range of methods available for treating infectious diseases, viral infections, and antibioticresistant pathogens [4,5].…”

Section: Introductionmentioning

confidence: 99%

Phytochemical and Antimicrobial Studies of Colloidal Silver Nanoparticles Mediated by <i>Laportea aestuans</i> Extract

Bankole¹

2018

IJBECS

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This present report describes studies on the phytochemical screening and antimicrobial activity of colloidal silver nanoparticles (AgNPs) mediated by Laportea aestuans leaf extract in aqueous solution. Herein, AgNPs were facilely synthesized using the fresh leaf extract of Laportea aestuans in water. UV-Vis absorption spectrum of as-prepared AgNPs shows surface plasmon resonance (SPR) peak at ≈ 453 nm, suggesting successful formation of AgNPs. The X-ray diffraction pattern of the AgNPs were consistent with the Bragg's reflections of AgNPs. Transmission electron microscope revealed that the prepared AgNPs are monodisperse, slightly non-aggregated and quasi-spherical in shapes. Phytochemical screenings of the leaves of L. aestuans shows presence of important bio-organic molecules that are responsible for the reduction, growth and stabilization of as-prepared AgNPs in aqueous solution. Bactericidal effects of the as-prepared biosynthesized AgNPs were carried out against pathogenic Gram-negative (Pseudomonas aeruginosa and Salmonella typhi) and Gram-positive (Bacillus subtilis and Staphylococcus aureus) bacteria. Biosynthesized AgNPs showed enhanced antimicrobial activity against S. aureus (gram positive) and S. typhi (gram negative), compared to B. subtilis (gram positive) and P. aeruginosa (gram negative) at the tested concentrations. Impressive antimicrobial activity of L-Ag against the tested pathogens could be attributed to the synergistic effects of the biomolecules in the Laportea aestuans plants and silver nanostructures.

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High spin structure in 130,131Ba

Cited by 24 publications

References 20 publications

Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

Identification of high- K rotation in Ba130 : Testing the consistency of electromagnetic observables

Phytochemical and Antimicrobial Studies of Colloidal Silver Nanoparticles Mediated by <i>Laportea aestuans</i> Extract

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High spin structure in 130,131Ba

Cited by 24 publications

References 20 publications

Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

Identification of high- K rotation in Ba130 : Testing the consistency of electromagnetic observables

Phytochemical and Antimicrobial Studies of Colloidal Silver Nanoparticles Mediated by &lt;i&gt;Laportea aestuans&lt;/i&gt; Extract

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Product

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Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

Phytochemical and Antimicrobial Studies of Colloidal Silver Nanoparticles Mediated by <i>Laportea aestuans</i> Extract