Applying Nuclear Shell Model to Study Nuclear Structure for 18Ne by Using OXBASH Code

Abstract

Article history: Received: 20 MAR., 2019 Accepted: 10 GUN, 2019 Available Online: 24 DEC, 2019 In this study, the shell model used to calculate energy levels and reduced electric quadruple transition probability B(E2) for 18 Ne isotope using OXBASH code within the sd shell and using the KUOSD effective interaction. 18 Ne isotope contain two proton outside 16 O core in shell (0d5/2, 1s1/2, and 0d3/2) .The results of the energy levels and values of B(E2) were reasonably consistent with the experimental data available. DOI: http://dx.doi.org/10.31257/2018/JKP/2019/110201 K e y w o r d s : OXBASH Code Ne isotope Energy Levels B(E2) ـل يوونلا بيكرتلا تساردل يوونلا ةرشقلا جذومنأ قيبطت 18 Ne شابسكوأ دوك لامعتساب نسح فلخ يلع دبع مكاح ليده ءاٌزٍفلا مسق ,خاىثلل حٍتزرلا حٍلك , حفوكلا حعماج :حٍحارفملا خاملكلا لا ــــ خ ـــ صلا ـــ ح شاثسكوا دوك زٍظو 18 Ne , حقاطلا خاٌورسم ً اةةةةةةةتز كلا اةةةةةةةهرواا حةةةةةةةٍلامرحا حلزرخملا ً اةتز كلا ةةطهلا ًااةتزل اةهرواا حةٍلامرحاو حقاطلا خاٌورسم باسح مذ حسارذلا يذه ًف حةلزرخملا B(E2) زةٍظىل 18 Ne دوةك امعرةسات OXBASH جزةرهلا همةض sd امعرةساو اعفلا لاافرلا KUOSD زٍظو نأ ثٍح 18 Ne ةةلهلا راةخ هٍووذوزت ىلا يورحٌ 16 O ) جزةرهلا ًةف 0 d5/2, 1s1/2, and 0d3/2 ) اةهرواا حةٍلامرحاو حةقاطلا خاٌورةسم مٍةق دةواك . B(E2) جزفورملا حٍلمعلا مٍهلا عم وهعم لكرت قفرذ . JOURNAL OF KUFA–PHYSICS | Vol. 11, No. 2 December (2019) Hadeel H. Abed, Ali k. Hasan 2 nucleus. Shell model is one of the most prominent and successful nuclear models[1]. One of the central challenges in nuclear physics understanding on the nuclear structure is choosing the correct effective interaction and model space that can lead to predicting a wide range of observation from the nuclear shell model systematically and correctly[2]. The nuclear shell model is one of the most powerful tools to give a quantitative interpretation of the empirical data. The two central ingredients of any calculation of the shell model are the N-N interaction and configuration space for valence particles. In principle, one can implement calculations of shell models with realistic N-N interaction in an indefinite configuration space or with effective renormalized interaction restricted configuration space[3]. The calculations of the shell model are made within a model space in which the nucleons are limited to a few orbits, when effective operators are used, taking into account the effect of the larger model space. This model offers a significant description of this issue [4]. Thus, the study of nuclei in the sd shell leads to a better understanding among the macroscopic (collective) description and the microscopic description of the core (shell model)[5]. In the current work, we focus a specific attention on the calculation of energy levels and the probability of transition within the shell model for 18 Ne isotope which has configurations of (0d5/2,1s1/2,0d3/2).