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Related papers: High-spin structures of $^{77,79,81,83}$As isotope…

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In the present work, we study nuclear structure properties of the $^{184-194}$Pb isotopes within the framework of the nuclear shell-model. We have performed shell-model calculations using KHH7B and KHHE interactions. We have reported…

Nuclear Theory · Physics 2026-01-01 S. Shukla , P. C. Srivastava

It is noted that the simple interaction in isospin variables $a (1/4 - t(i)\cdot t(j))$, in a single $j$ shell calculation, can also be written with angular momentum variables. For the configuration $(j^2) J_A$ for even $J_A$ the isospin is…

Nuclear Theory · Physics 2007-05-23 L. Zamick , A. Z. Mekjian , S. J. Lee

A shell-model study of proton-neutron pairing in $2p1f$ shell nuclei using a parametrized hamiltonian that includes deformation and spin-orbit effects as well as isoscalar and isovector pairing is reported. By working in a shell-model…

Nuclear Theory · Physics 2015-05-28 Y. Lei , S. Pittel , N. Sandulescu , A. Poves , B. Thakur , Y. M. Zhao

We present systematic shell-model studies of even-even $^{98-130}$Cd isotopes using a realistic effective shell-model interaction derived from the G-matrix approach with an inert core $^{88}$Sr. Our calculated low-lying excited energy…

Nuclear Theory · Physics 2023-08-23 Deepak Patel , Praveen C. Srivastava , Noritaka Shimizu

This paper presents a short overview of the shell-model approach with realistic effective interactions to the study of exotic nuclei. We first give a sketch of the current state of the art of the theoretical framework of this approach,…

Nuclear Theory · Physics 2015-06-19 A. Gargano , L. Coraggio , A. Covello , N. Itaco

Large scale shell model calculations have been carried out for odd-odd $^{58-62}$Mn isotopes in two different model spaces. First set of calculations have been carried out in full $\it{fp}$ shell valence space with two recently derived…

Nuclear Theory · Physics 2014-11-20 P. C. Srivastava , I. Mehrotra

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 ${fp}$ shell valence space (full $fp$ space for…

Nuclear Theory · Physics 2011-07-28 P. C. Srivastava , V. K. B. Kota

Spin-orbit splitting is an essential ingredient for our understanding of the shell structure in nuclei. One of the most important advantages of relativistic mean-field (RMF) models in nuclear physics is the fact that the large spin-orbit…

Nuclear Theory · Physics 2017-05-10 Konstantinos Karakatsanis , G. A. Lalazissis , Peter Ring , Elena Litvinova

We study nuclear high-spin states undergoing the transition to the fully stretched configuration with maximum angular momentum I_max within the space of valence nucleons. To this end, we perform a systematic theoretical analysis of…

Nuclear Theory · Physics 2008-11-26 M. Zalewski , W. Satula , W. Nazarewicz , G. Stoitcheva , H. Zdunczuk

A shell-model study of proton-neutron pairing in f - p shell nuclei using a parametrized hamiltonian that includes deformation and spin-orbit effects as well as isoscalar and isovector pairing is reported. By working in a shell-model…

Nuclear Theory · Physics 2015-05-18 Lei Yang , S. Pittel , B. Thakur , N. Sandulescu , A. Poves , Yu-Min Zhao

In the present work, we have reported comprehensive study of the $sd$-shell nuclei Si and P with neutron number varying from $N = 9$ to $N = 20$ using the microscopic effective valence shell interactions, namely, N3LO, JISP16 and DJ16A.…

Nuclear Theory · Physics 2023-04-05 Priyanka Choudhary , Praveen C. Srivastava

We construct an effective shell-model interaction for the valence space spanned by single-particle neutron and single-hole proton states in $^{100}$Sn. Starting from chiral nucleon-nucleon and three-nucleon forces and single-reference…

Nuclear Theory · Physics 2021-12-16 Z. H. Sun , G. Hagen , G. R. Jansen , T. Papenbrock

We present results of shell model calculations for the proton drip line nucleus $^{106}$Sb. The shell model calculations were performed based on an effective interaction for the $2s1d0g_{7/2}0h11_{11/2}$ shells employing modern models for…

Nuclear Theory · Physics 2009-10-31 T. Engeland , M. Hjorth-Jensen , E. Osnes

We study the role of configuration mixing in the heavier even-even isotopes of Argon. We begin by limiting the configurations of the even-even Ar isotopes to $(d_{3/2}^2)_{\pi}$ $(f_{7/2}^n)_{\nu}$. There, due to the particular location in…

Nuclear Theory · Physics 2009-06-30 S. J. Q. Robinson , Y. Y. Sharon , L. Zamick

Results from a multi-channel partial wave analysis of elastic and inelastic $\pi N$ and $\gamma N$ induced reactions are presented. The analysis evidences the existence of a spin-quartet of nucleon resonances with total angular momenta…

High Energy Physics - Experiment · Physics 2015-06-03 A. V. Anisovich , E. Klempt , V. A. Nikonov , A. V. Sarantsev , U. Thoma

We have performed realistic shell-model calculations for nuclei around doubly magic 100Sn and 132Sn using an effective interaction derived from the Bonn A nucleon-nucleon potential. The results are in remarkably good agreement with the…

Nuclear Theory · Physics 2022-03-02 A. Covello , L. Coraggio , A. Gargano

The higher-spin structure of $^{38}$Cl ($N = 21$) was investigated following the $^{26}$Mg($^{14}$C, $pn$) reaction at 30 and 37 MeV beam energies. The outgoing protons were detected in an $E- \Delta E$ Si telescope placed at 0$^\circ$…

We have reported shell-model results for $^{47-58}$Ca isotopes in the $fp$, $fpg_{9/2}$ and $fpg_{9/2}d_{5/2}$ model spaces using realistic $NN$ interaction. We have also performed a systematic shell-model study using interactions derived…

Nuclear Theory · Physics 2020-05-06 Bharti Bhoy , Praveen C. Srivastava , Kazunari Kaneko

We have performed shell model calculations for neutron deficient even $^{102-108}$Sn and odd $^{103-107}$Sn isotopes in $sdg_{7/2}h_{11/2}$ model space using two different interactions. The first set of interaction is due to Brown {\it et…

Nuclear Theory · Physics 2012-05-15 T. Trivedi , P. C. Srivastava , D. Negi , I. Mehrotra

A cranked shell model approach for the description of rotational bands in $N\approx Z$ nuclei is formulated. The isovector neutron-proton pairing is taken into account explicitly. The concept of spontaneous breaking and subsequent…

Nuclear Theory · Physics 2009-10-31 Stefan G. Frauendorf , Javid A. Sheikh