Identification of shell-model states in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Sb</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>135</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>populated via<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi>β</mml:mi><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>decay of<mml:math xmlns:mml="http://www

Shergur, J.; Cederkäll, J.

doi:10.1103/physrevc.72.024305

Cited by 29 publications

(27 citation statements)

References 20 publications

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“…In the very recent work of Ref. [4], tentative spin and parity attribution has been proposed for some of these states and the position of new levels has been established, including the J π = 3/2 + and 9/2 + yrast states at 440 and 798 keV, respectively.…”

Section: The Nucleusmentioning

confidence: 99%

See 1 more Smart Citation

Erratum: Shell-model structure of exoticSb135[Phys. Rev. C 72, 057302 (2005)]

Coraggio¹,

Covello²,

Gargano³

et al. 2006

Phys. Rev. C

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Recent studies have provided new experimental information on the very neutron-rich nucleus 135 Sb. We have performed a shell-model calculation for this nucleus using a realistic effective interaction derived from the CD-Bonn nucleon-nucleon potential. This gives a very good description of the observed properties of 135 Sb. We show that the anomalously low position of the first excited state, J π = 5/2 + , and the strongly hindered M 1 transition to the ground state have their origin in the effective neutron-proton interaction. In the very recent work of Refs. [5,6] the nature of the 5/2 + state in 135 Sb has been further investigated. In particular, at OSIRIS/STUDSVIK the Advanced TimeDelayed βγγ(t) method has been used to measure the lifetime of this state. A very small upper limit for the B(M 1) was found, thus evidencing a strongly hindered transition. This was seen as a confirmation of the singleparticle nature of the 5/2 + state. In this paper we report on a shell-model study of 135 Sb employing matrix elements of the two-body effective interaction derived from a modern nucleon-nucleon (N N ) potential. It is our main aim to verify to what extent a realistic shell-model calculation can account for the properties of 135 Sb, with special attention to the 5/2 + state, and try understand if there is a real need of shell structure modifications to explain the experimental data.We assume that 132 Sn is a closed core and let the valence neutrons occupy the six levels 0h 9/2 , 1f 7/2 , 1f 5/2 , 2p 3/2 , 2p 1/2 , and 0i 13/2 of the 82-126 shell, while for the proton the model space includes the five levels 0g 7/2 , 1d 5/2 , 1d 3/2 , 2s 1/2 , and 0h 11/2 of the 50-82 shell.The two-body matrix elements of the effective interaction are derived from the CD-Bonn N N potential [7]. The strong short-range repulsion of the latter is renormalized by means of the new approach of Ref. [8], which has proved to be an advantageous alternative to the usual G-matrix method [8,9]. In this approach, a smooth potential, V low−k , is constructed by integrating out the high-momentum components, i.e. above a certain cutoff momentum Λ, of the bare N N potential V N N . The V low−k preserves the physics of V N N up to Λ and can be used directly in the calculation of shell-model effective interactions. In the present paper, we have used for Λ the value 2.2 fm −1 . Once the V low−k is obtained, the calculation of the ef-

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Section: The Nucleusmentioning

confidence: 99%

“…The experimental [4,11] and calculated spectrum of 135 Sb are compared in Fig. 1, where we have reported the experimental yrast levels which have received spinparity assignment and the calculated yrast states with the same spin and parity.…”

Section: The Nucleusmentioning

confidence: 99%

Erratum: Shell-model structure of exoticSb135[Phys. Rev. C 72, 057302 (2005)]

Coraggio¹,

Covello²,

Gargano³

et al. 2006

Phys. Rev. C

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“…The 136 Sn 34 S + beam was found to be accompanied by 136 35,37 Cl + ions are due to chlorine traces in the TISS. The XeCl + ions are only created in the ion source plasma by attachment of radioactive Cl isotopes to the ionized Xe support gas.…”

Section: Pandora's Boxmentioning

confidence: 96%

“…Therefore neutronrich Sn isotopes were observed at ISOLDE up to 137 Sn [33] by beta-delayed neutron detection that is not disturbed by high beta or gamma background, but detailed decay spectroscopy of the heaviest isotopes was strongly hampered by intense background from Cs and Ba isobars and their isomers. Removing the longer-lived 134m,135m Cs with a tape and working with ''laser on" minus ''laser off" difference spectra still allowed to study the decay of 134,135 Sn [34,35], but on mass 136 the background of 19 s 136m Cs was just overwhelming. The neutron converter shifts the fission yields towards the neutron-rich side [6], but it cannot eliminate this background completely.…”

Section: Isol Beams Of Tin Isotopesmentioning

confidence: 98%

Progress in ISOL target–ion source systems

Köster

Arndt

Bouquerel

et al. 2008

Nuclear Instruments and Methods in Physics Research Section B:

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“…Earlier jj45pna interaction has been used in the study of 128 Cd [20] and its monopole corrected version in the study of Zr isotopes in this region [21]. G-matrix derived from CD-Bonn potential have also been widely used in the theoretical calculations performed by the Oslo group and their coworkers in 132 Sn region [22,23,24,25,26].…”

Section: Introductionmentioning

confidence: 99%