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Application of reduction methodology for halo, weakly and tightly bound projectiles on tin isotopes 针对锡同位素的晕、弱和紧束缚射弹应用还原方法
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-11-08 DOI: 10.1140/epja/s10050-024-01429-w
N. Deshmukh, Rambabu Mourya, Somnath Sonkar, Pankaj P. Shah, P. K. Rath, J. Lubian
{"title":"Application of reduction methodology for halo, weakly and tightly bound projectiles on tin isotopes","authors":"N. Deshmukh,&nbsp;Rambabu Mourya,&nbsp;Somnath Sonkar,&nbsp;Pankaj P. Shah,&nbsp;P. K. Rath,&nbsp;J. Lubian","doi":"10.1140/epja/s10050-024-01429-w","DOIUrl":"10.1140/epja/s10050-024-01429-w","url":null,"abstract":"<div><p>The total reaction cross sections for systems with medium–heavy-mass range targets of Sn isotopes including <sup>116</sup>Sn, <sup>118</sup>Sn, <sup>120</sup>Sn, and <sup>124</sup>Sn, along with different projectiles ranging from tightly bound to weakly bound and halo, were taken from the literature and compared by reducing them to eliminate trivial effects due to different sizes and different Coulomb barriers. In addition, for all the systems considered, one-channel calculations accounting only for fusion were performed to study the quantitative effect of the direct reaction channels on the total reaction cross section.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 11","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
(^{18})F alpha cluster structure in the resonant (^{14})N+(alpha ) scattering 共振(^{14})N+(α)散射中的α簇结构
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-11-06 DOI: 10.1140/epja/s10050-024-01434-z
A. K. Nurmukhanbetova, V. Z. Goldberg, A. Volya, D. K. Nauruzbayev, G. V. Rogachev
{"title":"(^{18})F alpha cluster structure in the resonant (^{14})N+(alpha ) scattering","authors":"A. K. Nurmukhanbetova,&nbsp;V. Z. Goldberg,&nbsp;A. Volya,&nbsp;D. K. Nauruzbayev,&nbsp;G. V. Rogachev","doi":"10.1140/epja/s10050-024-01434-z","DOIUrl":"10.1140/epja/s10050-024-01434-z","url":null,"abstract":"<div><p>The resonant <span>(^{14})</span>N+<span>(alpha )</span> particle scattering was studied in the <span>(^{18})</span>F excitation region from 6.5 to 9 MeV at Astana cyclotron using the TTIK approach. The excitation functions for the elastic <span>(^{14})</span>N+<span>(alpha )</span> scattering were analyzed in the framework of <i>R</i> matrix calculations. The observed strong alpha cluster structure in <span>(^{18})</span>F is compared with that in <span>(^{18})</span>O. While the general agreement of the structure in both nuclei is confirmed, a striking difference for <i>l</i> = 4 resonances is found. The experimental results are compared with configuration interaction calculations.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 11","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Measurement of the (E_textrm{p}=416.9) keV resonance strength in the (^{29})Si(p,(gamma ))(^{30})P reaction 测量Si(p,(gamma))(^{30})P反应中的(E_textrm{p}=416.9) keV共振强度
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-11-06 DOI: 10.1140/epja/s10050-024-01438-9
Zs. Mátyus, L. Csedreki, Zs. Fülöp, Z. Halász, G. G. Kiss, T. Szücs, Á. Tóth, Gy. Gyürky
{"title":"Measurement of the (E_textrm{p}=416.9) keV resonance strength in the (^{29})Si(p,(gamma ))(^{30})P reaction","authors":"Zs. Mátyus,&nbsp;L. Csedreki,&nbsp;Zs. Fülöp,&nbsp;Z. Halász,&nbsp;G. G. Kiss,&nbsp;T. Szücs,&nbsp;Á. Tóth,&nbsp;Gy. Gyürky","doi":"10.1140/epja/s10050-024-01438-9","DOIUrl":"10.1140/epja/s10050-024-01438-9","url":null,"abstract":"<div><p>Silicon isotopic ratios measured in meteoritic presolar grains can provide useful information about the nucleosynthesis origin of these isotopes if the rates of nuclear reactions responsible for their production are known. One of the key reactions determining the Si isotopic abundances is <span>(^{29})</span>Si(p,<span>(gamma )</span>)<span>(^{30})</span>P. Its reaction rate is not known with sufficient precision due in part to some ambiguous resonance strength values. In the present work, the strength of the <span>(E_textrm{p})</span> = 416.9 keV resonance has been measured with high precision using the activation technique. The new strength of <span>(omega gamma = 219 pm )</span> 16 meV can be used in updated reaction rate estimations and astrophysical models.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 11","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-024-01438-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Triply-heavy/strange baryons with Cornell potential on a quantum computer 量子计算机上具有康奈尔潜力的三重/奇异重子
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-11-04 DOI: 10.1140/epja/s10050-024-01430-3
Nicolás Martínez de Arenaza, J. J. Gálvez-Viruet, Felipe J. Llanes-Estrada
{"title":"Triply-heavy/strange baryons with Cornell potential on a quantum computer","authors":"Nicolás Martínez de Arenaza,&nbsp;J. J. Gálvez-Viruet,&nbsp;Felipe J. Llanes-Estrada","doi":"10.1140/epja/s10050-024-01430-3","DOIUrl":"10.1140/epja/s10050-024-01430-3","url":null,"abstract":"<div><p>We present a computation of triply-heavy baryons on a quantum computer, employing the Cornell quark model in line with the earlier quarkonium work of Gallimore and Liao. These baryons are some of the most interesting Standard Model particles which have not yet been detected, as they bear on the short range (colour) behaviour of the nuclear force. The spectrum here obtained is compatible with predictions from earlier works, with our uncertainty dominated by traditional few-body approximations (size of the variational basis, center of mass recoil, parameter estimation...) and not by the statistical error from the quantum computer (deployed here as a small diagonalizer), which turns out to be negligible with respect to the other sources of uncertainty, at least in the present unsophisticated few-body approximation. We have also substituted one or more heavy quarks for strange quarks.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 11","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Entropies, level-density parameters and fission probabilities along the triaxially- and axially-symmetric fission paths in 296Lv 296Lv 中沿三轴和轴对称裂变路径的熵，水平密度参数和裂变概率
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-10-30 DOI: 10.1140/epja/s10050-024-01437-w
A. Rahmatinejad, T. M. Shneidman, G. G. Adamian, N. V. Antonenko, P. Jachimowicz, M. Kowal
{"title":"Entropies, level-density parameters and fission probabilities along the triaxially- and axially-symmetric fission paths in 296Lv","authors":"A. Rahmatinejad,&nbsp;T. M. Shneidman,&nbsp;G. G. Adamian,&nbsp;N. V. Antonenko,&nbsp;P. Jachimowicz,&nbsp;M. Kowal","doi":"10.1140/epja/s10050-024-01437-w","DOIUrl":"10.1140/epja/s10050-024-01437-w","url":null,"abstract":"<div><p>We investigate the variation of statistical properties of the fissile nucleus, especially entropy, and nuclear level density, along different fission paths. The calculations were focused on comparing axial and triaxial trajectories leading to fission of <sup>296</sup>Lv. We observe that change of shell effects and their suppression rates with deformation can substantially influence fission dynamics. Furthermore, the fission process exhibits iso-entropic behavior at high excitation energies, while pronounced entropy variations are observed at lower energies. We derive a deformation-dependent level density parameter that plays a critical role in estimating the survival probability of a superheavy nucleus. The competition between different fission paths was further studied by employing a master equation approach, thereby demonstrating the critical role of entropy and thermodynamic properties in shaping fission dynamics within multidimensional deformation spaces.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-024-01437-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Towards hypernuclei from nuclear lattice effective field theory 从核晶格有效场理论走向超核
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-10-30 DOI: 10.1140/epja/s10050-024-01427-y
Fabian Hildenbrand, Serdar Elhatisari, Zhengxue Ren, Ulf-G. Meißner
{"title":"Towards hypernuclei from nuclear lattice effective field theory","authors":"Fabian Hildenbrand,&nbsp;Serdar Elhatisari,&nbsp;Zhengxue Ren,&nbsp;Ulf-G. Meißner","doi":"10.1140/epja/s10050-024-01427-y","DOIUrl":"10.1140/epja/s10050-024-01427-y","url":null,"abstract":"<div><p>Understanding the strong interactions within baryonic systems beyond the up and down quark sector is pivotal for a comprehensive description of nuclear forces. This study explores the interactions involving hyperons, particularly the <span>(varLambda )</span> particle, within the framework of nuclear lattice effective field theory (NLEFT). By incorporating <span>(varLambda )</span> hyperons into the NLEFT framework, we extend our investigation into the <span>(S = -1)</span> sector, allowing us to probe the third dimension of the nuclear chart. We calculate the <span>(varLambda )</span> separation energies (<span>(B_{varLambda })</span>) of hypernuclei up to the medium-mass region, providing valuable insights into hyperon–nucleon (<i>YN</i>) and hyperon–nucleon–nucleon (<i>YNN</i>) interactions. Our calculations employ high-fidelity chiral interactions at N<span>( ^3)</span>LO for nucleons and extend it to <span>(varLambda )</span> hyperons with leading-order S-wave <i>YN</i> interactions as well as <i>YNN</i> forces constrained only by the <span>(A=4,5)</span> systems. Our results contribute to a deeper understanding of the SU(3) symmetry breaking and establish a foundation for future improvements in hypernuclear calculations.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-024-01427-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Neutron capture cross-section of p-nucleus 74Se in the keV region using the activation method 使用活化法计算 p 核 74Se 在 keV 区域的中子俘获截面
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-10-29 DOI: 10.1140/epja/s10050-024-01413-4
E. Vagena, P. Dimitriou, S. Harissopulos, S. Stoulos
{"title":"Neutron capture cross-section of p-nucleus 74Se in the keV region using the activation method","authors":"E. Vagena,&nbsp;P. Dimitriou,&nbsp;S. Harissopulos,&nbsp;S. Stoulos","doi":"10.1140/epja/s10050-024-01413-4","DOIUrl":"10.1140/epja/s10050-024-01413-4","url":null,"abstract":"<div><p>The research on the (n, γ) cross section of selenium isotope <sup>74</sup>Se, determined using the activation method, has potential applications that could pique your interest. The irradiation was conducted by a Bremsstrahlung photon beam generated by an electron medical accelerator, yielding neutrons within an energy spectrum ranging from 1 keV to 1 MeV. The production of <sup>75</sup>Se nuclei occurs through a combination of neutron capture and photonuclear reactions in the field of a medical linear accelerator. Both the photon- and neutron-induced contributions had to be studied. Photo- and neutron-capture cross sections of <sup>74</sup>Se were calculated using the TALYS 2.0 nuclear reaction code and compared with our measurement. The results show that this method could be employed to study reactions relevant to nuclear astrophysics in medical centers, opening up new avenues for research and application.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A study of nuclear structure of light nuclei at the electron–ion collider 在电子-离子对撞机上研究轻原子核的核结构
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-10-28 DOI: 10.1140/epja/s10050-024-01432-1
Niseem Magdy, Mariam Hegazy, Aliaa Rafaat, Wenliang Li, Abhay Deshpande, A. M. H. Abdelhady, A. Y. Ellithi, Roy A. Lacey, Zhoudunming Tu
{"title":"A study of nuclear structure of light nuclei at the electron–ion collider","authors":"Niseem Magdy,&nbsp;Mariam Hegazy,&nbsp;Aliaa Rafaat,&nbsp;Wenliang Li,&nbsp;Abhay Deshpande,&nbsp;A. M. H. Abdelhady,&nbsp;A. Y. Ellithi,&nbsp;Roy A. Lacey,&nbsp;Zhoudunming Tu","doi":"10.1140/epja/s10050-024-01432-1","DOIUrl":"10.1140/epja/s10050-024-01432-1","url":null,"abstract":"<div><p>Understanding the substructure of atomic nuclei, particularly the clustering of nucleons inside them, is essential for comprehending nuclear dynamics. Various cluster configurations can emerge depending on excitation energy, the number and types of core clusters, and the presence of excess neutrons. Despite the prevalence of tightly bound cluster formations in low-lying states, understanding the correlation between clusters and their formation mechanisms remains incomplete. This exploring study investigates nuclear clustering at the electron–ion collider (EIC) using simulations based on the modified BeAGLE model. By simulating collisions involving <span>(e+^{9})</span>Be, <span>(e+^{12})</span>C, and <span>(e+^{16})</span>O nuclei, we find that the average energy of particles <span>(langle E rangle )</span> and the system size ratios of particles at forward rapidity exhibit sensitivity to alpha clustering and its various configurations. These findings offer valuable insights into the dynamics of nuclear clustering and its implications for future studies at the EIC.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Parity and time-reversal violating nuclear forces with explicit (Delta )-excitations 具有明确（△）激发的奇偶性和时间反转违反核力
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-10-28 DOI: 10.1140/epja/s10050-024-01426-z
L. Gandor, H. Krebs, E. Epelbaum
{"title":"Parity and time-reversal violating nuclear forces with explicit (Delta )-excitations","authors":"L. Gandor,&nbsp;H. Krebs,&nbsp;E. Epelbaum","doi":"10.1140/epja/s10050-024-01426-z","DOIUrl":"10.1140/epja/s10050-024-01426-z","url":null,"abstract":"<div><p>We emphasize the usefulness of treating delta resonances as explicit degrees of freedom in applications of chiral effective field theory (EFT) to parity-violating and time-reversal-violating (PVTV) nuclear interactions. Compared with the delta-less framework, the explicit inclusion of the delta isobar allows one to resum certain types of contributions to the PVTV two-pion exchange two- and three-nucleon potentials without at the same time introducing any unknown parameters up to next-to-next-to-leading order in the EFT expansion. We provide the corresponding expressions for the delta contributions in momentum and coordinate spaces and compare the convergence of the EFT expansion in both formulations.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-024-01426-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Research progress on advanced positron acceleration 先进正电子加速研究进展
IF 2.6 3区 物理与天体物理
The European Physical Journal A Pub Date : 2024-10-22 DOI: 10.1140/epja/s10050-024-01433-0
Meiyu Si, Yongsheng Huang
{"title":"Research progress on advanced positron acceleration","authors":"Meiyu Si,&nbsp;Yongsheng Huang","doi":"10.1140/epja/s10050-024-01433-0","DOIUrl":"10.1140/epja/s10050-024-01433-0","url":null,"abstract":"<div><p>Plasma Wakefield Acceleration (PWFA) is a highly promising method that can reduce the scale and cost of future electron–positron collider experiments. While significant breakthroughs have been achieved in electron acceleration both theoretically and experimentally, generating high-quality positron beams in plasma presents greater challenges. This paper reviews advanced positron acceleration schemes, including particle beam-driven wakefield acceleration, laser-driven wakefield acceleration, radiation acceleration, and hollow plasma channel acceleration. The hollow plasma channel scheme is a promising method that can provide stable and efficient acceleration of positrons, making it more advantageous for experimental implementation.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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