Pub Date : 2020-10-10DOI: 10.1142/s0218301320500676
E. Yazdankish
The Yukawa potential has an important and significant rule in some branches of physics such as nuclear, plasma and solid state. However, there is no analytical solution for Schrodinger equation wit...
汤川势在原子核、等离子体和固态等物理领域中具有重要意义。然而，对于薛定谔方程，没有解析解。
{"title":"Calculation of the energy eigenvalues of the Yukawa potential via variation principle","authors":"E. Yazdankish","doi":"10.1142/s0218301320500676","DOIUrl":"https://doi.org/10.1142/s0218301320500676","url":null,"abstract":"The Yukawa potential has an important and significant rule in some branches of physics such as nuclear, plasma and solid state. However, there is no analytical solution for Schrodinger equation wit...","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"28 1","pages":"2050067"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77575210","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}
Pub Date : 2020-10-01DOI: 10.1142/s0218301320300064
S. Brodsky, V. Burkert, D. Carman, J. Chen, Zhu-Fang Cui, M. Döring, H. G. Dosch, J. Draayer, L. Elouadrhiri, D. Glazier, A. H. Blin, T. Horn, K. Joo, H. Kim, V. Kubarovsky, S. Kuhn, Ya Lu, W. Melnitchouk, C. Mezrag, V. Mokeev, J. Qiu, M. Radici, D. Richards, C. Roberts, J. Rodríguez-Quintero, J. Segovia, J. Segovia, A. Szczepaniak, Guy F. de Téramond, D. Winney
The topical workshop Strong QCD from Hadron Structure Experiments took place at Jefferson Lab from November 6–9, 2019. Impressive progress in relating hadron structure observables to the strong QCD...
{"title":"Strong QCD from Hadron Structure Experiments","authors":"S. Brodsky, V. Burkert, D. Carman, J. Chen, Zhu-Fang Cui, M. Döring, H. G. Dosch, J. Draayer, L. Elouadrhiri, D. Glazier, A. H. Blin, T. Horn, K. Joo, H. Kim, V. Kubarovsky, S. Kuhn, Ya Lu, W. Melnitchouk, C. Mezrag, V. Mokeev, J. Qiu, M. Radici, D. Richards, C. Roberts, J. Rodríguez-Quintero, J. Segovia, J. Segovia, A. Szczepaniak, Guy F. de Téramond, D. Winney","doi":"10.1142/s0218301320300064","DOIUrl":"https://doi.org/10.1142/s0218301320300064","url":null,"abstract":"The topical workshop Strong QCD from Hadron Structure Experiments took place at Jefferson Lab from November 6–9, 2019. Impressive progress in relating hadron structure observables to the strong QCD...","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"393 1","pages":"2030006"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86824527","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}
Pub Date : 2020-09-24DOI: 10.1142/s0218301320500524
D. Akrawy, A. H. Ahmed, E. Tel, A. Aydin, L. Sihver
An empirical formula to calculate the (n, p) reaction cross-sections for 14.5 MeV neutrons for 183 target nuclei in the range 44 ≤ A ≤ 212 is presented. Evaluated cross-section data from TENDL nuclear data library were used to test and benchmark the formula. In this new formula, the nonelastic cross-section term is replaced by the atomic number Z, while the asymmetry parameter-dependent exponential term has been retained. The calculated results are presented in comparison with the seven previously published formulae. We show that the new formula is significantly in better agreement with the measured values compared to previously published formulae.
{"title":"New empirical formula for calculating (n,p) reaction cross-sections at 14.5MeV neutrons","authors":"D. Akrawy, A. H. Ahmed, E. Tel, A. Aydin, L. Sihver","doi":"10.1142/s0218301320500524","DOIUrl":"https://doi.org/10.1142/s0218301320500524","url":null,"abstract":"An empirical formula to calculate the (n, p) reaction cross-sections for 14.5 MeV neutrons for 183 target nuclei in the range 44 ≤ A ≤ 212 is presented. Evaluated cross-section data from TENDL nuclear data library were used to test and benchmark the formula. In this new formula, the nonelastic cross-section term is replaced by the atomic number Z, while the asymmetry parameter-dependent exponential term has been retained. The calculated results are presented in comparison with the seven previously published formulae. We show that the new formula is significantly in better agreement with the measured values compared to previously published formulae.","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"8 1","pages":"2050052"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89744975","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}
Pub Date : 2020-09-14DOI: 10.1142/s0218301320500652
M. Ismail, A. Adel
The α-decay half-lives, Tα, for five heavy and nine superheavy even–even nuclei with 84 ≤ Z ≤ 92 and 116 ≤ Z ≤ 132, respectively, have been calculated within the density-dependent cluster model. The α-nucleus potential was derived by employing the double-folding model with a realistic NN interaction whose exchange part has a finite-range. We considered several isotopes for each Z-value. The behavior of log Tα against the neutron number variation for different isotopes of each element is investigated. We found a clear similarity in the behavior of log Tα for the isotopes of a number of successive elements. The proton pair in the emitted α particle, for these elements, comes from the same proton energy level. Also, the behavior of log Tα with the parent neutron number, for different isotopes of an element, was found to be governed by the existence of neutron magic number or neutron-level closure. The possibility to correlate the behavior of log Tα for several isotopes of a specific element with the proton and neutron energy levels of this element is investigated. Moreover, the behavior of log Tα when adding successive proton pairs to fill the energy level at different neutron numbers is studied. This work can be considered as a significant step forward to correlate the behavior of log Tα with the energy levels.
{"title":"Sequences of single-particle energy levels of even–even SHN with Z = 116−132 based on α-decay systematics","authors":"M. Ismail, A. Adel","doi":"10.1142/s0218301320500652","DOIUrl":"https://doi.org/10.1142/s0218301320500652","url":null,"abstract":"The α-decay half-lives, Tα, for five heavy and nine superheavy even–even nuclei with 84 ≤ Z ≤ 92 and 116 ≤ Z ≤ 132, respectively, have been calculated within the density-dependent cluster model. The α-nucleus potential was derived by employing the double-folding model with a realistic NN interaction whose exchange part has a finite-range. We considered several isotopes for each Z-value. The behavior of log Tα against the neutron number variation for different isotopes of each element is investigated. We found a clear similarity in the behavior of log Tα for the isotopes of a number of successive elements. The proton pair in the emitted α particle, for these elements, comes from the same proton energy level. Also, the behavior of log Tα with the parent neutron number, for different isotopes of an element, was found to be governed by the existence of neutron magic number or neutron-level closure. The possibility to correlate the behavior of log Tα for several isotopes of a specific element with the proton and neutron energy levels of this element is investigated. Moreover, the behavior of log Tα when adding successive proton pairs to fill the energy level at different neutron numbers is studied. This work can be considered as a significant step forward to correlate the behavior of log Tα with the energy levels.","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"617 1","pages":"2050065"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77618007","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}
Pub Date : 2020-09-14DOI: 10.1142/s0218301320500640
P. Sedaghatnia, H. Hassanabadi, M. de Montigny
Motivated by the prominent role of tensor interactions in nuclear spectroscopy and many applications of spin and pseudospin symmetry in hadronic and nuclear physics, we solve the Dirac equation wit...
{"title":"Dirac equation with CPRS potential and Cornell tensor interaction in the presence of spin and pseudospin symmetry","authors":"P. Sedaghatnia, H. Hassanabadi, M. de Montigny","doi":"10.1142/s0218301320500640","DOIUrl":"https://doi.org/10.1142/s0218301320500640","url":null,"abstract":"Motivated by the prominent role of tensor interactions in nuclear spectroscopy and many applications of spin and pseudospin symmetry in hadronic and nuclear physics, we solve the Dirac equation wit...","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"21 1","pages":"2050064"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85446695","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}
Pub Date : 2020-09-11DOI: 10.1142/s0218301320500603
M. Gazdzicki, M. Gorenstein, O. Savchuk, L. Tinti
Properties of basic statistical ensembles in the Cell Model are discussed. The simplest version of the model with a fixed total number of particles is considered. The microcanonical ensembles of di...
讨论了单元模型中基本统计系综的性质。考虑了具有固定粒子总数的模型的最简单版本。的微正则系综。
{"title":"Notes on statistical ensembles in the Cell Model","authors":"M. Gazdzicki, M. Gorenstein, O. Savchuk, L. Tinti","doi":"10.1142/s0218301320500603","DOIUrl":"https://doi.org/10.1142/s0218301320500603","url":null,"abstract":"Properties of basic statistical ensembles in the Cell Model are discussed. The simplest version of the model with a fixed total number of particles is considered. The microcanonical ensembles of di...","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"9 1","pages":"2050060"},"PeriodicalIF":0.0,"publicationDate":"2020-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79951645","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}
Pub Date : 2020-09-04DOI: 10.1142/s0218301320300076
Myungkuk Kim, Chang-Hwan Lee, Young-Min Kim, K. Kwak, Y. Lim, C. H. Hyun
This paper reviews the properties of neutron stars based on the recent multi-messenger observations including electromagnetic waves from the low-mass X-ray binaries and gravitational waves from the...
{"title":"Neutron star equations of state and their applications","authors":"Myungkuk Kim, Chang-Hwan Lee, Young-Min Kim, K. Kwak, Y. Lim, C. H. Hyun","doi":"10.1142/s0218301320300076","DOIUrl":"https://doi.org/10.1142/s0218301320300076","url":null,"abstract":"This paper reviews the properties of neutron stars based on the recent multi-messenger observations including electromagnetic waves from the low-mass X-ray binaries and gravitational waves from the...","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"15 1","pages":"2030007"},"PeriodicalIF":0.0,"publicationDate":"2020-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77304991","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}
Pub Date : 2020-09-03DOI: 10.1142/s0218301320500548
A. Pastore
This work illustrates the use of bootstrap methods to quantify the statistical uncertainties on the correlation coefficients between the slope of the symmetry energy and the neutron skin thickness ...
这项工作说明了使用自举方法来量化对称能斜率与中子蒙皮厚度之间相关系数的统计不确定性。
{"title":"Bootstrap analysis of the correlation between neutron skin thickness and the slope of symmetry energy","authors":"A. Pastore","doi":"10.1142/s0218301320500548","DOIUrl":"https://doi.org/10.1142/s0218301320500548","url":null,"abstract":"This work illustrates the use of bootstrap methods to quantify the statistical uncertainties on the correlation coefficients between the slope of the symmetry energy and the neutron skin thickness ...","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"330 1","pages":"2050054"},"PeriodicalIF":0.0,"publicationDate":"2020-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89299203","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}
Pub Date : 2020-09-01DOI: 10.1142/s0218301320500810
Monica Karday, Anshul Dadwal, H. M. Mittal
The rotational energy formulae viz. VMI model, ab-formula, Harris ω2 expansion, Exponential model with pairing attenuation and Nuclear softness formula are employed to the superdeformed bands of A ∼ 190 and A ∼ 150 mass regions in order to test the validity of various rotational energy formulae in describing the general nature of superdeformed bands. These formulae are used to deduce the band-head spins of the nine superdeformed bands in A ∼ 190 mass region and two superdeformed bands of A ∼ 150 mass region. The band-head spins of these superdeformed bands have been established experimentally and hence they prove to be excellent candidates to examine the adequacy of rotational energy formulae in superdeformed bands. The least-squares fitting of γ-transition energies is performed to calculate the model parameters such as the band-head moment of inertia, the effective pairing gap parameter and the softness parameter, and a careful analysis of these parameters is made. For the first time, we have performed a systematic study of the rotational energy formulae to establish which formula gives the best estimate of spin in A ∼ 190, 150 mass regions.
{"title":"Examination of phenomenological formulae in superdeformed bands of A ∼ 190,150 mass regions","authors":"Monica Karday, Anshul Dadwal, H. M. Mittal","doi":"10.1142/s0218301320500810","DOIUrl":"https://doi.org/10.1142/s0218301320500810","url":null,"abstract":"The rotational energy formulae viz. VMI model, ab-formula, Harris ω2 expansion, Exponential model with pairing attenuation and Nuclear softness formula are employed to the superdeformed bands of A ∼ 190 and A ∼ 150 mass regions in order to test the validity of various rotational energy formulae in describing the general nature of superdeformed bands. These formulae are used to deduce the band-head spins of the nine superdeformed bands in A ∼ 190 mass region and two superdeformed bands of A ∼ 150 mass region. The band-head spins of these superdeformed bands have been established experimentally and hence they prove to be excellent candidates to examine the adequacy of rotational energy formulae in superdeformed bands. The least-squares fitting of γ-transition energies is performed to calculate the model parameters such as the band-head moment of inertia, the effective pairing gap parameter and the softness parameter, and a careful analysis of these parameters is made. For the first time, we have performed a systematic study of the rotational energy formulae to establish which formula gives the best estimate of spin in A ∼ 190, 150 mass regions.","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"1 1","pages":"2050081"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78779810","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}
Pub Date : 2020-09-01DOI: 10.1142/S0218301320500780
M. Alshudifat, M. Serhan, M. Abusini
The angular distribution of the nucleon elastic scattering on the lightest mirror nuclei 3H and 3He at incident energies of 6 and 9[Formula: see text]MeV has been analyzed. A new set of phenomenological optical potential parameters has been obtained. A comparison of differential cross-sections has been performed for both elastic scatterings of neutron and proton on the mirror nuclei. The contribution of individual volume, surface, and spin-orbit terms in the optical model potential for the projectiles at different energies was studied. The predicted elastic angular distributions results compared well with the experimental data.
{"title":"Elastic scattering of nucleon by the lightest mirror nuclei 3H and 3He using the optical model potential","authors":"M. Alshudifat, M. Serhan, M. Abusini","doi":"10.1142/S0218301320500780","DOIUrl":"https://doi.org/10.1142/S0218301320500780","url":null,"abstract":"The angular distribution of the nucleon elastic scattering on the lightest mirror nuclei 3H and 3He at incident energies of 6 and 9[Formula: see text]MeV has been analyzed. A new set of phenomenological optical potential parameters has been obtained. A comparison of differential cross-sections has been performed for both elastic scatterings of neutron and proton on the mirror nuclei. The contribution of individual volume, surface, and spin-orbit terms in the optical model potential for the projectiles at different energies was studied. The predicted elastic angular distributions results compared well with the experimental data.","PeriodicalId":14032,"journal":{"name":"International Journal of Modern Physics E-nuclear Physics","volume":"27 1","pages":"2050078"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88458061","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}
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