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The 25th European Conference on Few-Body Problems in Physics (EFB25) 第 25 届欧洲物理学少体问题会议（EFB25）
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-09-16 DOI: 10.1007/s00601-024-01955-9
Sonia Bacca, Hans-Werner Hammer
{"title":"The 25th European Conference on Few-Body Problems in Physics (EFB25)","authors":"Sonia Bacca, Hans-Werner Hammer","doi":"10.1007/s00601-024-01955-9","DOIUrl":"10.1007/s00601-024-01955-9","url":null,"abstract":"","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00601-024-01955-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stereodynamics Effects on van der Waals Molecule Formation Through Three-Body Recombination 立体动力学对通过三体重组形成范德华分子的影响
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-08-31 DOI: 10.1007/s00601-024-01953-x
Yu Wang, Jesús Pérez-Ríos
{"title":"Stereodynamics Effects on van der Waals Molecule Formation Through Three-Body Recombination","authors":"Yu Wang,&nbsp;Jesús Pérez-Ríos","doi":"10.1007/s00601-024-01953-x","DOIUrl":"10.1007/s00601-024-01953-x","url":null,"abstract":"<div><p>In this work, we present a study on the role of atomic configurations in forming van der Waals molecules through three-body recombination. Fixing the angle between the two momenta associated with the Jacobi vectors, we calculate the reaction probability for a specific configuration. In this way, we elucidate the nature of the total reaction probability in reactions X + He + He<span>(rightarrow )</span>XHe + He, essential for understanding van der Waals molecules formation in molecular beams and buffer gas cells.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216256","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
Formation of the Positronium Antihydride Molecules ((bar{textrm{H}}textrm{Ps})) in Low Energy, 5-Body Collisions of Antihydrogen Ion (bar{textrm{H}}^+) with Positronium Atoms Ps 反氢离子 $$bar{textrm{H}}textrm{Ps}^+$ 与正电子原子 Ps 的低能量 5 体碰撞中正电子反氢化物分子 ( $$bar{textrm{H}}textrm{Ps}$ 的形成
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-08-19 DOI: 10.1007/s00601-024-01952-y
Piotr Froelich, Takuma Yamashita, Yasushi Kino, Svante Jonsell, Emiko Hiyama
{"title":"Formation of the Positronium Antihydride Molecules ((bar{textrm{H}}textrm{Ps})) in Low Energy, 5-Body Collisions of Antihydrogen Ion (bar{textrm{H}}^+) with Positronium Atoms Ps","authors":"Piotr Froelich,&nbsp;Takuma Yamashita,&nbsp;Yasushi Kino,&nbsp;Svante Jonsell,&nbsp;Emiko Hiyama","doi":"10.1007/s00601-024-01952-y","DOIUrl":"10.1007/s00601-024-01952-y","url":null,"abstract":"<div><p>In this paper we present the first pilot calculation of the elastic and inelastic cross sections for the 5-body scattering of antihydrogen ions with positronium atoms. These cross sections have not been calculated before and are not known experimentally. In particular, we focus on the collisional rearrangement reactions <span>(bar{{ mathrm H}}^+ + textrm{Ps} rightarrow {bar{textrm{H}}}textrm{Ps} +{mathrm{e^+}})</span> which deplete the <span>(bar{textrm{H}}^+)</span> ions and result in stable atomcules <span>(bar{textrm{H}}textrm{Ps})</span>. To better understand the mechanism of this rearrangement, we study the 3-dimensional, angle resolved positron densities of the 3- and 4-body fragments in the initial and final states of the rearrangement collision.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00601-024-01952-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring Pulsar Glitches with Dipolar Supersolids 用双极超固体探索脉冲星闪烁
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-08-16 DOI: 10.1007/s00601-024-01949-7
Thomas Bland, Francesca Ferlaino, Massimo Mannarelli, Elena Poli, Silvia Trabucco
{"title":"Exploring Pulsar Glitches with Dipolar Supersolids","authors":"Thomas Bland,&nbsp;Francesca Ferlaino,&nbsp;Massimo Mannarelli,&nbsp;Elena Poli,&nbsp;Silvia Trabucco","doi":"10.1007/s00601-024-01949-7","DOIUrl":"10.1007/s00601-024-01949-7","url":null,"abstract":"<div><p>Glitches are sudden spin-up events that interrupt the gradual spin-down of rotating neutron stars. They are believed to arise from the rapid unpinning of vortices in the neutron star inner crust. The analogy between the inner crust of neutron stars and dipolar supersolids allows to investigate glitches. Employing such analogy, we numerically analyze the vortex trapping mechanism and how the matter density distribution influences glitches. These results pave the way for the quantum simulation of celestial bodies in laboratories.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227002","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
Absence of Binding of Heavy Fermions by Two Light Atoms in Two Dimensions 两个轻原子在二维空间中不结合重费米子
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-08-08 DOI: 10.1007/s00601-024-01950-0
J. Givois, D. S. Petrov
{"title":"Absence of Binding of Heavy Fermions by Two Light Atoms in Two Dimensions","authors":"J. Givois,&nbsp;D. S. Petrov","doi":"10.1007/s00601-024-01950-0","DOIUrl":"10.1007/s00601-024-01950-0","url":null,"abstract":"<div><p>By developing the mean-field theory valid for large <i>N</i>, we investigate the problem of two light fermions interacting via a zero-range potential with <i>N</i> heavy fermions in two dimensions. We obtain numerical evidence that this system is never fully bound. It always splits into droplets containing a single light atom. This is in contrast to the one-dimensional case where any number of heavy and light fermions can be bound together.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141930463","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
Radiative Corrections and the Renormalization Group for the Two-Nucleon Interaction in Effective Field Theory 有效场论中双核子相互作用的辐射修正和重正化群
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-08-05 DOI: 10.1007/s00601-024-01948-8
Thomas R. Richardson, Immo C. Reis
{"title":"Radiative Corrections and the Renormalization Group for the Two-Nucleon Interaction in Effective Field Theory","authors":"Thomas R. Richardson,&nbsp;Immo C. Reis","doi":"10.1007/s00601-024-01948-8","DOIUrl":"10.1007/s00601-024-01948-8","url":null,"abstract":"<div><p>We use a combination of effective field theory and the renormalization group to determine the impact of radiative corrections on the nucleon–nucleon potential and the binding energy of the deuteron. In order to do so, we present a modified version of pionless effective field theory inspired by earlier work in nonrelativistic quantum electrodynamics. The renormalization group improvement of the deuteron binding energy leads to a shift on the order of a few percent and is consistent with the experimental value. This work serves as a starting point for a dedicated study of radiative corrections in few-body systems relevant for precision tests of the Standard Model in an effective field theory framework.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00601-024-01948-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141930464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurement of the (mathrm {{}^{12}C}(e,e')) Cross Sections at (Q^2=0.8,textrm{GeV}^2/c^2) 在 $$Q^2=0.8,textrm{GeV}^2/c^2$ 时测量 $$mathrm {{}^{12}C}(e,e')$$ 交叉截面
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-08-01 DOI: 10.1007/s00601-024-01944-y
M. Mihovilovič, L. Doria, P. Achenbach, A. M. Ankowski, S. Bacca, D. Bosnar, A. Denig, M. O. Distler, A. Esser, I. Friščić, C. Giusti, M. Hoek, S. Kegel, M. Littich, G. D. Megias, H. Merkel, U. Müller, J. Pochodzalla, B. S. Schlimme, M. Schoth, C. Sfienti, S. Širca, J. E. Sobczyk, Y. Stöttinger, M. Thiel
{"title":"Measurement of the (mathrm {{}^{12}C}(e,e')) Cross Sections at (Q^2=0.8,textrm{GeV}^2/c^2)","authors":"M. Mihovilovič,&nbsp;L. Doria,&nbsp;P. Achenbach,&nbsp;A. M. Ankowski,&nbsp;S. Bacca,&nbsp;D. Bosnar,&nbsp;A. Denig,&nbsp;M. O. Distler,&nbsp;A. Esser,&nbsp;I. Friščić,&nbsp;C. Giusti,&nbsp;M. Hoek,&nbsp;S. Kegel,&nbsp;M. Littich,&nbsp;G. D. Megias,&nbsp;H. Merkel,&nbsp;U. Müller,&nbsp;J. Pochodzalla,&nbsp;B. S. Schlimme,&nbsp;M. Schoth,&nbsp;C. Sfienti,&nbsp;S. Širca,&nbsp;J. E. Sobczyk,&nbsp;Y. Stöttinger,&nbsp;M. Thiel","doi":"10.1007/s00601-024-01944-y","DOIUrl":"10.1007/s00601-024-01944-y","url":null,"abstract":"<div><p>We present the findings of a study based on a new inelastic electron-scattering experiment on the <span>({}^{12})</span>C nucleus focusing on the kinematic region of <span>(Q^2=0.8,textrm{GeV}^2/{c}^2)</span>. The measured cross section is sensitive to the transverse response function and provides a stringent test of theoretical models, as well as of the theoretical assumptions made in Monte-Carlo event-generator codes developed for the interpretation of neutrino-nucleus experiments, such as DUNE and HyperK. We find that modern generators such as GENIE and GiBUU reproduce our new experimental data within 10<span>(%)</span>.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00601-024-01944-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reliability of the Born-Oppenheimer Approximation in Noninteger Dimensions 非整数维度中的玻恩-奥本海默近似的可靠性
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-07-24 DOI: 10.1007/s00601-024-01946-w
D. S. Rosa, T. Frederico, R. M. Francisco, G. Krein, M. T. Yamashita
{"title":"Reliability of the Born-Oppenheimer Approximation in Noninteger Dimensions","authors":"D. S. Rosa,&nbsp;T. Frederico,&nbsp;R. M. Francisco,&nbsp;G. Krein,&nbsp;M. T. Yamashita","doi":"10.1007/s00601-024-01946-w","DOIUrl":"10.1007/s00601-024-01946-w","url":null,"abstract":"<div><p>We address the question of the reliability of the Born-Oppenheimer (BO) approximation for a mass-imbalanced resonant three-body system embedded in noninteger dimensions. We address this question within the problem of a system of currently experimental interest, namely <span>(^7)</span>Li<span>(-^{87})</span>Rb<span>(_2)</span>. We compare the Efimov scale parameter as well as the wave functions obtained using the BO approximation with those obtained using the Bethe-Peierls boundary condition.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770284","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
On the Lorentz Symmetry Violation Effects on a Particle Subject to a Trigonometric Potential and a Periodic Potential 论受三角势和周期势作用的粒子的洛伦兹对称性违反效应
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-07-23 DOI: 10.1007/s00601-024-01947-9
K. Bakke, H. Belich
{"title":"On the Lorentz Symmetry Violation Effects on a Particle Subject to a Trigonometric Potential and a Periodic Potential","authors":"K. Bakke,&nbsp;H. Belich","doi":"10.1007/s00601-024-01947-9","DOIUrl":"10.1007/s00601-024-01947-9","url":null,"abstract":"<div><p>We study the nonrelativistic effects of the Lorentz symmetry violation determined by the coupling between the fixed vector field <span>(f^{mu }gamma ^{5})</span> and the derivative of the fermionic field on the squared cotangent potential and a periodic potential in <span>(left( 1+1right) )</span>-dimensions. Our analysis focusses on how the energy eigenvalues can be influenced by the Lorentz symmetry violation background. From the energy eigenvalues, we extend our discussion to the revival time.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770285","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
Explicitly Correlated Gaussians with Tensor Pre-factors: Analytic Matrix Elements 具有张量预因子的显相关高斯：解析矩阵元素
IF 1.7 4区 物理与天体物理
Few-Body Systems Pub Date : 2024-07-17 DOI: 10.1007/s00601-024-01945-x
D. V. Fedorov, A. F. Teilmann, M. C. Østerlund, T. L. Norrbohm
{"title":"Explicitly Correlated Gaussians with Tensor Pre-factors: Analytic Matrix Elements","authors":"D. V. Fedorov,&nbsp;A. F. Teilmann,&nbsp;M. C. Østerlund,&nbsp;T. L. Norrbohm","doi":"10.1007/s00601-024-01945-x","DOIUrl":"10.1007/s00601-024-01945-x","url":null,"abstract":"<div><p>We consider a specific form of explicitly correlated Gaussians—with tensor pre-factors—which appear naturally when dealing with certain few-body systems in nuclear and particle physics. We derive analytic matrix elements with these Gaussians—overlap, kinetic energy, and Coulomb potential—to be used in variational calculations of those systems. We also perform a quick test of the derived formulae by applying them to p- and d-waves of the hydrogen atom.</p></div>","PeriodicalId":556,"journal":{"name":"Few-Body Systems","volume":"65 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00601-024-01945-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141745409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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