International Journal of Modern Physics E-nuclear Physics最新文献_第4页

New results on nuclear magicity and possible extension of the nuclear landscape 核奇迹的新成果和核景观的可能扩展

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-05-01 DOI: 10.1142/S0218301321500385

M. Ismail, A. Ellithi, A. Khaled, H. Anwer

{"title":"New results on nuclear magicity and possible extension of the nuclear landscape","authors":"M. Ismail, A. Ellithi, A. Khaled, H. Anwer","doi":"10.1142/S0218301321500385","DOIUrl":"https://doi.org/10.1142/S0218301321500385","url":null,"abstract":"In nuclear theory, there is always a quest for possible extensions of the nuclear landscape and extending our knowledge to the limits of nuclear existence. In this study, we examine the stability and structural properties of a wide range of nuclei in super- and ultra-heavy region in a phenomenological semi-microscopic approach. we calculated the shell correlation energy, residual pairing correction energy, two-nucleon separation energy and two-nucleon energy gap for 3670 even–even nuclei along [Formula: see text]-stability line and two-neutron driplines in the ranges [Formula: see text] with [Formula: see text] and [Formula: see text] with [Formula: see text], respectively. To assure reliability and confidence of the new results in the ultra-heavy region, we extended the search space to include heavy and super-heavy nuclei. We report 83 double magic nuclei and address the predominance of proton and neutron magic numbers. Our calculations reproduced known results on nuclear magicity and present strong evidences on islands of stability and magic numbers in super- and ultra-heavy regions. We also address shifts in nuclear magicity along the nuclear landscape close to the [Formula: see text]-stability line and close to the neutron rich regions.","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"18 1","pages":"2150038"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81677848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research of beam matching on RFQ for CADS proton linac CADS质子直线加速器RFQ光束匹配研究

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-29 DOI: 10.1142/S0218301321500270

Chao Wang, W. Dou, Zhi-jun Wang, C. Feng, Wang-sheng Wang, Weilong Chen, Yongzhi Jia, Shuhui Liu, Yuan He, Yuanshuai Qin, Y. Tao

引用次数: 1

Residual np-interaction and mass predictions in transfermium region 转移区剩余np相互作用和质量预测

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-29 DOI: 10.1142/S0218301321500257

E. V. Vladimirova, B. Ishkhanov, M. Simonov, S. Sidorov, T. Tretyakova

引用次数: 1

Description of the negative- and positive-parity states in odd-A Radon and Francium isotopes within the framework of the interacting Boson–Fermion model 在相互作用玻色子-费米子模型的框架内描述奇数a氡和钫同位素的负和正宇称态

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-27 DOI: 10.1142/S021830132150035X

Musa M. Mahdi

引用次数: 0

First observation of collective rotational bands in neutron-rich 142La and the study of octupole/triaxial deformations in 142,143La 富中子142La中集体旋转带的首次观测及142143la中八极/三轴变形的研究

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-27 DOI: 10.1142/S0218301321500373

Y. Luo, J. Rasmussen, J. H. Hamilton, A. Ramayya, E. Wang, S. Frauendorf, W. Liang, C. Jiao, Q. Wu, H. Liu, F. Xu, Y. Liu, Yang Sun, J. K. Hwang, S. Liu, S. Zhu, N. Brewer, I. Lee, G. Ter-Akopian, Y. Oganessian, A. Daniel, R. Donangelo, W. Ma

{"title":"First observation of collective rotational bands in neutron-rich 142La and the study of octupole/triaxial deformations in 142,143La","authors":"Y. Luo, J. Rasmussen, J. H. Hamilton, A. Ramayya, E. Wang, S. Frauendorf, W. Liang, C. Jiao, Q. Wu, H. Liu, F. Xu, Y. Liu, Yang Sun, J. K. Hwang, S. Liu, S. Zhu, N. Brewer, I. Lee, G. Ter-Akopian, Y. Oganessian, A. Daniel, R. Donangelo, W. Ma","doi":"10.1142/S0218301321500373","DOIUrl":"https://doi.org/10.1142/S0218301321500373","url":null,"abstract":"Collective rotational bands were observed for the first time in neutron-rich odd–odd [Formula: see text]La by means of [Formula: see text]-[Formula: see text]-[Formula: see text] and [Formula: see text]-[Formula: see text]-[Formula: see text]-[Formula: see text] coincidence measurements of prompt fission [Formula: see text] rays from [Formula: see text]Cf using multi-detector array Gammasphere. Similarity between the yrast band of [Formula: see text]La and those of neighboring [Formula: see text]La, [Formula: see text]Ce was found and interpreted as quasiparticle excitations. PES calculations suggested triaxial deformation for the ground state of 142La. Considerable triaxial and near zero octupole deformations were deduced for the yrast band of [Formula: see text]La by the TRS model calculations. The band-crossing observed in the yrast band of [Formula: see text]La was interpreted to be caused by alignment of the (h[Formula: see text])2 proton pair, and the crossing frequency was best reproduced by the TRS calculations taking into account triaxial deformations. In contrast to the interpretations for the band crossing of [Formula: see text]La, alignments of the (i[Formula: see text])2 neutron pair were found to be responsible for the band-crossing of the yrast band in the neighboring even-N [Formula: see text]La, and triaxial degree of freedom was found to play a more significant role than octupole deformations in the nucleus, although its [Formula: see text] values deduced are large.","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75209694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Octupole correlations in 127I 127I的八极相关

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-12 DOI: 10.1142/S0218301321500300

Sandip Chakraborty, H. Sharma, S. Tiwary, C. Majumder, A. Gupta, A. Kumar, P. Banerjee, S. Ganguly, Satish Kumar, R. Singh, S. Muralithar

引用次数: 0

The p +9Be elastic scattering below 30MeV: Optical model analysis and data normalization 30MeV以下p +9Be弹性散射:光学模型分析与数据归一化

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-10 DOI: 10.1142/S0218301321500245

H. M. Maridi, A. Pakou, K. Rusek

引用次数: 2

Bound state solution of the Schrodinger equation for the Woods–Saxon potential plus coulomb interaction by Nikiforov–Uvarov and supersymmetric quantum mechanics methods 用Nikiforov-Uvarov和超对称量子力学方法求解Woods-Saxon势加库仑相互作用的薛定谔方程的束缚态解

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-10 DOI: 10.1142/S0218301321500233

E. Yazdankish

{"title":"Bound state solution of the Schrodinger equation for the Woods–Saxon potential plus coulomb interaction by Nikiforov–Uvarov and supersymmetric quantum mechanics methods","authors":"E. Yazdankish","doi":"10.1142/S0218301321500233","DOIUrl":"https://doi.org/10.1142/S0218301321500233","url":null,"abstract":"The generalized Woods–Saxon potential plus repulsive Coulomb interaction is considered in this work. The supersymmetry quantum mechanics method is used to get the energy spectrum of Schrodinger equation and also the Nikiforov–Uvarov approach is employed to solve analytically the Schrodinger equation in the framework of quantum mechanics. The potentials with centrifugal term include both exponential and radial terms, hence, the Pekeris approximation is considered to approximate the radial terms. By using the step-by-step Nikiforov–Uvarov method, the energy eigenvalue and wave function are obtained analytically. After that, the spectrum of energy is obtained by the supersymmetry quantum mechanics method. The energy eigenvalues obtained from each method are the same. Then in special cases, the results are compared with former result and a full agreement is observed. In the [Formula: see text]-state, the standard Woods–Saxon potential has no bound state, but with Coulomb repulsive interaction, it may have bound state for zero angular momentum.","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"30 1","pages":"2150023"},"PeriodicalIF":0.0,"publicationDate":"2021-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89624187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interplay of Coulomb and symmetry potential in peak fragment production in asymmetric collisions 非对称碰撞中峰值碎片产生过程中库仑和对称势的相互作用

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-07 DOI: 10.1142/S0218301321500221

Sakshi Sharma, Rohit Kumar, S. Gautam, R. Puri

引用次数: 0

Backward shower particle production in high energy nucleus–nucleus collisions — an outlook to centrality dependence 高能核-核碰撞中反向阵雨粒子的产生——对中心性依赖的展望

International Journal of Modern Physics E-nuclear Physics Pub Date : 2021-04-01 DOI: 10.1142/S0218301321500324

S. Bhattacharyya

引用次数: 1