High spin structure and intruder configurations in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">P</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>31</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>

Ionescu‐Bujor, M.; Iordăchescu, A.; Napoli, D. R.; Lenzi, S. M.; Mărginean, N.; Otsuka, T.; Utsuno, Yutaka; Ribas, R. V.; Axiotis, M.; Bazzacco, D.; Bizzeti‐Sona, A. M.; Bizzeti, P. G.; Brandolini, F.; Bucurescu, D.; Cardona, M. A.; Angelis, G. de; Poli, M.; Vedova, F. Della; Farnea, E.; Gadea, A.; Hojman, D.; Kalfas, C. A.; Kroll, Thilo; Lunardi, S.; Martínez, T.; Mason, P.; Pavan, P.; Quintana, B.; Alvarez, C. Rossi; Ur, C. A.; Vlastou, R.; Zilio, Silvio

doi:10.1103/physrevc.73.024310

Cited by 29 publications

(16 citation statements)

References 21 publications

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“…Further, the predicted negative parity states in 30 Si, are in reasonable agreement with the observed level sequences. Interestingly, the calculations did not require any system dependent lowering of the single-particle energies of the f 7/2 and the p 3/2 orbitals as was found necessary in the previous studies [7,21,22]. Ref.…”

Section: Introductionmentioning

confidence: 82%

“…Several studies on the sdpf nuclei have attempted to explain the observed level structures by introducing a nucleus specific reduction [21,22] in the single particle energies of the intruder levels, and have attributed the agreement of such (shell model) calculations with the deduced level structure as a signature of the reduced shell gaps. However, it may be noted that these calculations have been performed using a large model space and consequently, a truncation scheme had to be introduced owing to the computational limitations.…”

Section: Re-examining Shell Model Calculations In 30 Simentioning

confidence: 99%

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Spectroscopy and shell model calculations in Si isotopes

Bhattacharjee

Raut

et al. 2015

Phys. Rev. C

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The 29 Si nucleus has been studied using heavy-ion induced fusion-evaporation reaction and, for the first time, using a large array of high resolution γ-ray detectors. High spin states of the nucleus have been populated using 18 O( 16 O,αn) and 18 O( 13 C,2n) reactions at E lab = 30-34 MeV. Previously reported levels have been confirmed and a new level has been identified in the present study. Spin-parity assignments have been carried out based on the anisotropy and polarization measurements of the observed γ-transitions. Level lifetimes have been measured using Doppler Shift Attenuation Method (DSAM), with modified analysis techniques for the thick molecular target (Ta2O5) used in the present setup. Lifetime of the lowest negative parity state at Ex = 3624 keV has been substantially modified from the previously reported value. Large basis shell model calculations have been carried out for the nucleus using updated interactions and the results corroborate the experimental findings. The calculations have also been carried out for the neighbouring 28,30 Si isotopes. In case of the 28 Si nucleus, the calculations adequately reproduce most of the deformed structures, as represented by the quadrupole moments extracted therefrom. In the 30 Si nucleus, the negative parity states have been reproduced for the first time without any ad hoc lowering of the single particle energies. It can be generally stated that the shell model calculations adequately describe the experimental observations in these nuclei.

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Section: Introductionmentioning

confidence: 82%

Section: Re-examining Shell Model Calculations In 30 Simentioning

confidence: 99%

Spectroscopy and shell model calculations in Si isotopes

Bhattacharjee

Raut

et al. 2015

Phys. Rev. C

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“…Several different interactions were developed [4][5][6][7][8] and truncated sd-fp shell-model calculations were performed. The experimental information concerning the level scheme of many nuclei in the region was considerably extended in the last decade by using heavy-ion induced reactions and efficient γ detection systems [9][10][11][12][13][14][15][16][17][18][19][20]. The data were compared with large shell-model calculations to test the effective interactions proposed for this mass region.…”

Section: Introductionmentioning

confidence: 99%

High-spin states and lifetimes in S33 and shell-model interpretation in the sd−fp space

Aydin¹,

Ionescu‐Bujor²,

Gavrilov³

et al. 2017

Phys. Rev. C

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The structure of the 33 S nucleus was investigated in the 24 Mg(14 N,αp) fusion-evaporation reaction using a 40-MeV 14 N beam. The level scheme was extended up to an excitation energy of 11.7 MeV and spin 19/2 +. Lifetimes of the intermediate-and high-spin states have been investigated by the Doppler shift attenuation method. Data were compared with different shell-model calculations where effective interactions involving two main shells, the sd and the fp, are used.

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“…Ref. [23]. An interesting feature revealed by these calculations is that the yrast negative-parity states show an alternating structure: the 7 [22] which is not sufficient to disentangle the theoretical puzzle.…”

Section: Introductionmentioning

confidence: 99%

“…Excited levels of 31 P was were previously studied in 12 C( 20 Ne,p(n)), see Ref. [22] and 24 Mg( 16 O,2αp(n)) reactions, Ref [23,24] up to high spins. In contrast, the more exotic 31 S was observed up to only 13 2 + and 13 2 − spin Ref.…”

Section: Introductionmentioning

confidence: 99%

High Resolution γ-Ray Spectroscopy Using GALILEO Array

et al. 2019

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The GALILEO γ-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam γ-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of 100 Sn.

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High spin structure and intruder configurations inP31

Cited by 29 publications

References 21 publications

Spectroscopy and shell model calculations in Si isotopes

Spectroscopy and shell model calculations in Si isotopes

High-spin states and lifetimes in S33 and shell-model interpretation in the sd−fp space

High Resolution γ-Ray Spectroscopy Using GALILEO Array

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