Large-scale shell-model calculations for even-odd 61−65Fe isotopes

Srivastava, P. C.; Mehrotra, I.

doi:10.1134/s1063778810100030

Cited by 10 publications

(4 citation statements)

References 7 publications

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“…In addition, the so-called f pg interaction in f pg 9/2 space with 48 Ca core has some limited success [4,11]. However, combining the results of the present paper with our previous large shell-model studies of neutron-rich Fe and Mn isotopes [9][10][11], we conclude that it is necessary to generate good f pg 9/2 and f pg 9/2 d 5/2 space effective interactions (with 48 Ca core) for neutron-rich Fe, Mn, and Co isotopes. After the present work was complete, there appeared a report giving some results for low-lying yrast levels in even-even Cr and Fe isotopes, showing collective effects as N approached 40, obtained using a new hybrid interaction in f pg 9/2 d 5/2 space [45].…”

Section: Discussionmentioning

confidence: 53%

Shell-model results in $fp$ and ${fpg_{9/2}}$ spaces for $^{61,63,65}$Co isotopes

Srivastava,

Kota

2010

Preprint

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Low-lying spectra and several high-spin states of odd-even 61,63,65 Co isotopes are calculated in two different shell-model spaces. First set of calculations have been carried out in f p shell valence space (full f p space for 63,65 Co and a truncated one for 61 Co) using two recently derived f p shell interactions, namely GXPF1A and KB3G, with 40 Ca as core. Similarly, the second set of calculations have been performed in f pg 9/2 valence space using an f pg effective interaction due to Sorlin et al., with 48 Ca as core and imposing a truncation. It is seen that the results of GXPF1A and KB3G are reasonable for 61,63 Co. For 65 Co, shell-model results show that the f pg interaction adopted in the study is inadequate and also point out that it is necessary to include orbitals higher than 1g 9/2 for neutron-rich Co isotopes.

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Section: Discussionmentioning

confidence: 53%

Shell-model results in $fp$ and ${fpg_{9/2}}$ spaces for $^{61,63,65}$Co isotopes

Srivastava,

Kota

2010

Preprint

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“…The importance of the inclusion of intruder orbitals from sdg shell in the model space for f p shell nuclei is reported in the literature [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Structure of odd Ge isotopes with 40 < N < 50

Srivastava

Ermamatov

2013

Phys. Atom. Nuclei

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We have interpreted recently measured experimental data of 77 Ge, and also for 73,75,79,81 Ge isotopes in terms of state-of-the-art shell model calculations. Excitation energies, B(2) values, quadrupole moments and magnetic moments are compared with experimental data when available. The calculations have been performed with the recently derived interactions, namely with JUN45 and jj44b for f 5/2 pg 9/2 space.We have also performed calculation for f pg 9/2 valence space using an f pg effective interaction with 48 Ca core and imposing a truncation to study the importance of the proton excitations across the Z = 28 shell in this region. The predicted results of jj44b interaction are in good agreement with experimental data. * Email: praveen.srivastava@nucleares.unam.mx 1. W. Rother et al., Phys. Rev. Lett. 106, 022502 (2011). 2. N. Aoi et al., Phys. Rev. Lett. 102, 012502 (2009).

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“…The nuclear shell model is the most powerful tool for giving a quantitative interpretation to the experimental data. Our recent shell-model (SM) studies for neutron-rich F isotopes [11], odd and even isotopes of Fe [12,13], odd-odd Mn isotopes [14] odd-mass 61,63,65 Co isotopes [15], even-even Ni and Zn and odd-A Cu isotopes [16,17], odd-mass Ga isotopes [18] and neutron deficient 102−108 Sn isotopes [19] Zr nuclei which form the N = 51 isotonic chain. The effective interaction used in the present work is renormalized G matrix obtained from CD Bonn N-N interaction and adopted to the model space based on a 78 Ni core (referred to as jj45pna interaction).…”

Section: Introductionmentioning

confidence: 99%