发布求助
文献互助 智能选刊 最新文献

Few-Body Systems最新文献

筛选
英文 中文
Correction to: Pseudospin Symmetry in Position-Dependent Mass Dirac-Coulomb Problem by Using Laplace Transform and Convolution Integral 用拉普拉斯变换和卷积积分修正位置相关质量狄拉克-库仑问题中的伪自旋对称性
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-10-09 DOI: 10.1007/s00601-023-01863-4
Sami Ortakaya
{"title":"Correction to: Pseudospin Symmetry in Position-Dependent Mass Dirac-Coulomb Problem by Using Laplace Transform and Convolution Integral","authors":"Sami Ortakaya","doi":"10.1007/s00601-023-01863-4","DOIUrl":"10.1007/s00601-023-01863-4","url":null,"abstract":"","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134795907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relativistic Quantum Effects on Scalar Bosons in Morris–Thorne-Type Wormhole Space-Time with a Cosmic String 宇宙弦Morris–Thorne型虫洞时空中标量玻色子的相对论量子效应
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-10-03 DOI: 10.1007/s00601-023-01860-7
Faizuddin Ahmed
{"title":"Relativistic Quantum Effects on Scalar Bosons in Morris–Thorne-Type Wormhole Space-Time with a Cosmic String","authors":"Faizuddin Ahmed","doi":"10.1007/s00601-023-01860-7","DOIUrl":"10.1007/s00601-023-01860-7","url":null,"abstract":"<div><p>In this study, the relativistic quantum motion of spin-0 scalar bosons within the framework of Morris–Thorne-type wormhole space-time accompanied by a cosmic string is studied. We tackle the problem by solving the relativistic Klein–Gordon equation using the confluent Heun equation. We determine the ground state energy level, denoted as <span>(E_{1,m})</span>, as well as the corresponding wave function, denoted as <span>(psi _{1,m})</span>. Interestingly, the investigation reveals that both the cosmic string parameter and the wormhole throat radius have an impact on the relativistic eigenvalue solution, thereby modifying the energy spectrum. Furthermore, the presence of the quantum flux field induces a shift in the energy levels, leading to the gravitational analogue of the Aharonov–Bohm effect.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41085609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamical Diquarks and Baryon Transition Form Factors 动力学双夸克和重子跃迁形式因子
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-10-03 DOI: 10.1007/s00601-023-01858-1
Khépani Raya, Jorge Segovia
{"title":"Dynamical Diquarks and Baryon Transition Form Factors","authors":"Khépani Raya,&nbsp;Jorge Segovia","doi":"10.1007/s00601-023-01858-1","DOIUrl":"10.1007/s00601-023-01858-1","url":null,"abstract":"<div><p>The role and impact of dynamical diquark correlations that appear within three-quark bound states (baryons), owing largely to the mechanisms responsible for the emergence of hadron masses, can be addressed via the computation of baryon electromagnetic transition form factors (TFFs). Herein, we describe a procedure based upon continuum Schwinger methods to evaluate such physical objects. For illustration purposes, we specialize on the <span>(gamma ^{(*)}p rightarrow N(1535)frac{1}{2}^-)</span> TFF, in which the interference between the different diquark correlations plays a determining role. Albeit limited to a symmetry-preserving treatment of a vector <span>(otimes )</span> vector contact-interaction model of quantum chromodynamics, both the mathematical procedure and numerical results serve as benchmarks for more sophisticated calculations to be developed in the future.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41085607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
What is ab initio? 什么是从头算？
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-10-03 DOI: 10.1007/s00601-023-01857-2
R. Machleidt
{"title":"What is ab initio?","authors":"R. Machleidt","doi":"10.1007/s00601-023-01857-2","DOIUrl":"10.1007/s00601-023-01857-2","url":null,"abstract":"<div><p>Microscopic nuclear theory is based on the tenet that atomic nuclei can be accurately described as collections of point-like nucleons interacting via two- and many-body forces obeying nonrelativistic quantum mechanics—and the concept of the <i>ab initio</i> approach is to calculate nuclei accordingly. The forces are fixed in free-space scattering and must be accurate. We will critically review the history of this approach from the early beginnings until today. An analysis of current <i>ab initio</i> calculations reveals that some mistakes of history are being repeated today. The ultimate goal of nuclear theory are high-precision <i>ab initio</i> calculations which, as it turns out, may be possible only at the fifths order of the chiral expansion. Thus, for its fulfillment, nuclear theory is still facing an enormous task.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41085608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
On an Exactly Solvable Two-Body Problem in Two-Dimensional Quantum Mechanics 关于二维量子力学中一个可精确求解的二体问题
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-10-03 DOI: 10.1007/s00601-023-01859-0
Roman Ya. Kezerashvili, Jianning Luo, Claudio R. Malvino
{"title":"On an Exactly Solvable Two-Body Problem in Two-Dimensional Quantum Mechanics","authors":"Roman Ya. Kezerashvili,&nbsp;Jianning Luo,&nbsp;Claudio R. Malvino","doi":"10.1007/s00601-023-01859-0","DOIUrl":"10.1007/s00601-023-01859-0","url":null,"abstract":"<div><p>It is well known that exactly solvable models play an extremely important role in many fields of quantum physics. In this study, the Schrödinger equation is applied for a solution of a two-dimensional (2D) problem for two particles enclosed in a circle, confined in an oscillatory well, trapped in a magnetic field, interacting via the Coulomb, Kratzer, and modified Kratzer potentials. In the framework of the Nikiforov–Uvarov method, we transform 2D Schrödinger equations with potentials for which the three-dimensional Schrödinger equation is exactly solvable, into a second-order differential equation of a hypergeometric-type via transformations of coordinates and particular substitutions. Within this unified approach which also has pedagogical merit, we obtain exact analytical solutions for wave functions in terms of special functions such as a hypergeometric function, confluent hypergeometric function, and solutions of Kummer’s, Laguerre’s, and Bessel’s differential equations. We present the energy spectrum for any arbitrary state with the azimuthal number <i>m</i>. Interesting aspects of the solutions unique to the 2D case are discussed.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41085619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Correction to: Analytical Determination of Mass and Magnetic Moment of Baryons in Diquark Model 修正:重夸克模型中重子质量和磁矩的解析测定
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-09-29 DOI: 10.1007/s00601-023-01856-3
Mansour Farhadi, S. Mohammad Moosavi Nejad, A. Armat
{"title":"Correction to: Analytical Determination of Mass and Magnetic Moment of Baryons in Diquark Model","authors":"Mansour Farhadi,&nbsp;S. Mohammad Moosavi Nejad,&nbsp;A. Armat","doi":"10.1007/s00601-023-01856-3","DOIUrl":"10.1007/s00601-023-01856-3","url":null,"abstract":"","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analytical Determination of Mass and Magnetic Moment of Baryons in Diquark Model 二夸克模型中重子质量和磁矩的解析测定
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-08-22 DOI: 10.1007/s00601-023-01854-5
Mansour Farhadi, S. Mohammad Moosavi Nejad, A. Armat
{"title":"Analytical Determination of Mass and Magnetic Moment of Baryons in Diquark Model","authors":"Mansour Farhadi,&nbsp;S. Mohammad Moosavi Nejad,&nbsp;A. Armat","doi":"10.1007/s00601-023-01854-5","DOIUrl":"10.1007/s00601-023-01854-5","url":null,"abstract":"<div><p>So far, many constituent quark models have been applied to describe the internal configuration of light and heavy baryons and also for determining their static properties Among all static quantities, the mass and the magnetic moment of baryons are the most interesting observables which provide direct information on the dynamics of strong interaction and color confinement phenomenon. In this work, through the quark–diquark model we analytically compute the mass and the magnetic moment of light and heavy baryons in their ground state. To this aim, we use the Bethe–Salpeter equation in the presence of Hellmann potential with the onepionexchange contribution to determine the mass and the wave function of baryons. Using the spin-flavor structure of constituent quarks we calculate the magnetic moment of light, single and double heavy baryons and compare them with existing data and other modeldependent predictions. We will also predict the mass and the magnetic moment of unobserved triply heavy baryons relevant for the present and future high energy colliders.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44955815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the Photoionization Process of Highly Charged Ions Under Non-ideal Classical Plasma Conditions 非理想经典等离子体条件下高电荷离子光离过程的研究
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-08-17 DOI: 10.1007/s00601-023-01853-6
Zhan-Bin Chen
{"title":"Investigation of the Photoionization Process of Highly Charged Ions Under Non-ideal Classical Plasma Conditions","authors":"Zhan-Bin Chen","doi":"10.1007/s00601-023-01853-6","DOIUrl":"10.1007/s00601-023-01853-6","url":null,"abstract":"<div><p>In this manuscript, we suggest a relativistic distorted wave approach for the prediction of structural properties and photoionization cross sections of highly charged ions in a non-ideal classical plasma (NICP) environment. The pseudopotential, obtained from a sequential solution of the Bogolyubov chain equations, is used to describe screened interactions in the plasma. We solve the Dirac equation to obtain wave functions and energies. Detailed calculations are carried out for the photoionization of the highly ionized H-like S<span>(^{15+})</span> ions for an illustrative purpose. The NICP effects on the energies, transition rates, ionization potentials, and photoionization cross sections are investigated. Comparing our results with other available experimental and theoretical data, we find satisfactory agreement. Apart from its fundamental importance, the present study has implications for a range of fields, including astrophysics, nuclear fusion and laboratory plasma experiments.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49052000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to: Calculable Microscopic Theory for (^{12}hbox {C}(alpha ,gamma )^{16}hbox {O}) Cross Section near Gamow Window 修正:12C(α，γ)16Odocumentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amssymb} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} begin{document}$$^{12}hbox
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-08-17 DOI: 10.1007/s00601-023-01855-4
Y. Suzuki
{"title":"Correction to: Calculable Microscopic Theory for (^{12}hbox {C}(alpha ,gamma )^{16}hbox {O}) Cross Section near Gamow Window","authors":"Y. Suzuki","doi":"10.1007/s00601-023-01855-4","DOIUrl":"10.1007/s00601-023-01855-4","url":null,"abstract":"","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42442356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nucleon Electromagnetic Form Factors at Large Momentum Transfer from Lattice QCD 晶格QCD大动量转移时的核子电磁形状因子
IF 1.6 4区 物理与天体物理
Few-Body Systems Pub Date : 2023-08-10 DOI: 10.1007/s00601-023-01839-4
Sergey Syritsyn, Michael Engelhardt, Jeremy Green, Stefan Krieg, John Negele, Andrew Pochinsky
{"title":"Nucleon Electromagnetic Form Factors at Large Momentum Transfer from Lattice QCD","authors":"Sergey Syritsyn,&nbsp;Michael Engelhardt,&nbsp;Jeremy Green,&nbsp;Stefan Krieg,&nbsp;John Negele,&nbsp;Andrew Pochinsky","doi":"10.1007/s00601-023-01839-4","DOIUrl":"10.1007/s00601-023-01839-4","url":null,"abstract":"<div><p>Nucleon form factors at large momentum transfer are important for understanding the transition from nonperturbative to perturbative QCD and have been the focus of experiment and phenomenology. We calculate proton and neutron electromagnetic form factors <span>(G_{E,M}(Q^2))</span> from first principles using nonperturbative methods of lattice QCD. We have accumulated large Monte Carlo statistics to study form factors up to momentum transfer <span>(Q^2lesssim 8text { GeV}^2)</span> with a range of lattice spacings as well as quark masses that approach the physical point. In this paper, results of initial analyses are presented and compared to experiment, and potential sources of systematic uncertainty are discussed.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45181176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信