Naohiko Otuka, Sándor Takács, Masayuki Aikawa, Shuichiro Ebata, Hiromitsu Haba
{"title":"Erratum to: Isomer production studied with simultaneous decay curve analysis for alpha-particle induced reactions on natural platinum up to 29 MeV","authors":"Naohiko Otuka, Sándor Takács, Masayuki Aikawa, Shuichiro Ebata, Hiromitsu Haba","doi":"10.1140/epja/s10050-024-01482-5","DOIUrl":"10.1140/epja/s10050-024-01482-5","url":null,"abstract":"","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995668","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}
{"title":"Three-body forces and Efimov physics in nuclei and atoms","authors":"Shimpei Endo, Evgeny Epelbaum, Pascal Naidon, Yusuke Nishida, Kimiko Sekiguchi, Yoshiro Takahashi","doi":"10.1140/epja/s10050-024-01467-4","DOIUrl":"10.1140/epja/s10050-024-01467-4","url":null,"abstract":"<div><p>This review article presents historical developments and recent advances in our understanding on the three-body forces and Efimov physics, from an interdisciplinary viewpoint encompassing nuclear physics and cold atoms. Theoretical attempts to elucidate the three-body force with the chiral effective field theory are explained, followed by an overview of experiments aimed at observing signatures of the nuclear three-body force. Some recent experimental and theoretical works in the field of cold atoms devoted to measuring and engineering three-body forces among atoms are also presented. As a phenomenon arising from the three-body effect, Efimov physics in both cold atoms and nuclear systems is reviewed.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-024-01467-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995667","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}
{"title":"Theoretical analysis of two-neutron transfer in the (^{12})C(p,t)(^{10})C reaction","authors":"E. N. Cardozo, J. Lubian","doi":"10.1140/epja/s10050-024-01473-6","DOIUrl":"10.1140/epja/s10050-024-01473-6","url":null,"abstract":"<div><p>This work studies the two-neutron pickup transfer in the reaction <span>(^{12})</span>C(p,t)<span>(^{10})</span>C at 43 and 80 MeV in the laboratory frame. Finite-range coupled reaction channel calculations were performed to analyze the experimental angular distributions for direct and sequential two-neutron transfer mechanisms. Shell-model calculations were carried out to derive the spectroscopic amplitudes for the target overlaps. We show that the results of the both mechanisms present the same order of magnitude of the experimental data, thus there is a competition between the direct and sequential mechanisms for both energies studied. The data, in general, are well-described for the coherent sum of the direct and sequential transfers without any normalization factor.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995705","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}
{"title":"Nonlinear correction to the nuclear gluon distribution function","authors":"F. Abdi, B. Rezaei","doi":"10.1140/epja/s10050-024-01465-6","DOIUrl":"10.1140/epja/s10050-024-01465-6","url":null,"abstract":"<div><p>In the present paper, we use the parameterization of the proton structure function to derive an analytical solution for the nuclear gluon density at small <i>x</i>. The behavior of nuclear parton distribution functions (nPDFs) in the next-to-leading-order (NLO) approximation at small <i>x</i> is defined numerically in a semi-analytical study using the Gribov–Levin–Ryskin and Mueller–Qiu (GLR-MQ) approach. We observe that the gluon distribution increases with increasing <span>(Q^2)</span>, increasing atomic number <i>A</i>, and decreasing <i>x</i>. The results of the nonlinear GLR-MQ evolution equation are comparable to the Rausch–Guzey–Klasen (RGK) nuclear gluon distributions. The longitudinal structure function is considered according to the nonlinear effects of the gluon density behavior at small <i>x</i>. These results show that the nonlinear effects are important in <span>(F^A_L (x,Q^2)</span>) for heavy nuclei.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994912","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}
V. Piau, A. Göök, S. Oberstedt, A. Oberstedt, A. Chebboubi, O. Litaize, M. Vidali
{"title":"Characterization of isomers produced by the spontaneous fission of 252Cf with the VESPA setup","authors":"V. Piau, A. Göök, S. Oberstedt, A. Oberstedt, A. Chebboubi, O. Litaize, M. Vidali","doi":"10.1140/epja/s10050-024-01470-9","DOIUrl":"10.1140/epja/s10050-024-01470-9","url":null,"abstract":"<div><p>Isomers produced by spontaneous fission of <span>( ^{252})</span>Cf were measured with the VESPA setup, composed of <span>(hbox {LaBr}_3)</span>(Ce) detectors for fast <span>(gamma )</span>-ray spectroscopy and an ionization chamber for detecting fission fragments. Identification of the isomers was derived from fission fragment-<span>(gamma )</span>-<span>(gamma )</span> coincidences. This paper presents the half-lives of 41 isomeric states measured with this setup, from less than a nanosecond up to tens of microseconds. Short-lived isomers in <span>( ^{94})</span>Rb, <span>( ^{108})</span>Tc, and <span>( ^{147})</span>Ce are reported for the first time. In addition to this half-life analysis, the isomers are used to develop and test a nuclear charge calibration of the ionization chamber.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994945","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}
T. Petruse, G. L. Guardo, D. Lattuada, M. La Cognata, D. L. Balabanski, E. Aciksoz, L. Acosta, L. Capponi, D. Carbone, S. Cherubini, D. Choudhury, G. D’Agata, A. Di Pietro, P. Figuera, M. Gulino, A. I. Kilik, M. La Commara, L. Lamia, C. Matei, S. Palmerini, R. G. Pizzone, S. Romano, P.-A. Söderström, R. Sparta, A. Tumino, S. Viñals
{"title":"Direct measurement of the 19F(p,(alpha ))16O reaction using the LHASA detector array","authors":"T. Petruse, G. L. Guardo, D. Lattuada, M. La Cognata, D. L. Balabanski, E. Aciksoz, L. Acosta, L. Capponi, D. Carbone, S. Cherubini, D. Choudhury, G. D’Agata, A. Di Pietro, P. Figuera, M. Gulino, A. I. Kilik, M. La Commara, L. Lamia, C. Matei, S. Palmerini, R. G. Pizzone, S. Romano, P.-A. Söderström, R. Sparta, A. Tumino, S. Viñals","doi":"10.1140/epja/s10050-024-01462-9","DOIUrl":"10.1140/epja/s10050-024-01462-9","url":null,"abstract":"<div><p>The low-energy <sup>19</sup>F(p,<span>(alpha )</span>)<sup>16</sup>O reaction has significant implications for nuclear astrophysics. The <sup>19</sup>F(p, <span>(alpha )</span>)<sup>16</sup>O reaction occurs via three channels: (p,<span>(alpha _0)</span>), (p,<span>(alpha _pi )</span>), and (p,<span>(alpha _gamma )</span>). At lower temperatures, below 0.15 GK, the (p,<span>(alpha _0)</span>) channel is the dominant contributor of the reaction. The <sup>19</sup>F(p,<span>(alpha _{0})</span>)<sup>16</sup>O reaction cross section in the energy range of 400–900 keV was studied in this work. Recent data in the literature reveals a roughly 1.4 increase compared to prior findings reported in the NACRE (Nuclear Astrophysics Compilation of REactions) compilation. Therefore, we present new additional result of the study published in EPJA [22] employing a silicon strip detector array (LHASA - Large High-resolution Array of Silicon for Astrophysics). The anguar distributions, the reaction cross sections and the astrophysical <i>S-factors</i> of the (p,<span>(alpha _0)</span>) channel were obtained through this experiment. Our findings resolve the discrepancies that exist between the two previously available data sets in the literature.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-024-01462-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976584","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}
N. Alamanos, M. J. G. Borge, S. Hofmann, P. Möller, A. G. Popeko
{"title":"Heavy and super-heavy nuclei and elements: production and properties","authors":"N. Alamanos, M. J. G. Borge, S. Hofmann, P. Möller, A. G. Popeko","doi":"10.1140/epja/s10050-024-01468-3","DOIUrl":"10.1140/epja/s10050-024-01468-3","url":null,"abstract":"<div><p>The advances in understanding and producing heavy and super-heavy elements is the subject of this topical collection. The main covered subjects are: the description of the theory, developments of super-heavies and the determination of the <i>Island of Stability</i> as well as the role of these nuclei as part of the <i>r-process</i> scenario. The accurate determination of reaction processes are crucial to enable advances in the production of the heaviest elements. A short summary of the achievements at some of the facilities, their improved spectrometers and recent spectroscopy results complete this topical collection.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142940967","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}
{"title":"Collective excitations in the hot QCD medium and the propagation of heavy quarks","authors":"Mohammad Yousuf Jamal, Bedangadas Mohanty","doi":"10.1140/epja/s10050-024-01472-7","DOIUrl":"10.1140/epja/s10050-024-01472-7","url":null,"abstract":"<div><p>This review explores the current understanding of collective excitations and the dynamics of heavy quark propagation in the quark-gluon plasma (QGP) formed in relativistic heavy-ion collisions. We focus on three core aspects: the theoretical modelling of the QGP, including momentum anisotropy, medium-induced collisions, finite chemical potential, and non-ideal interactions; the collective behaviours within the plasma; and the interaction dynamics of heavy quarks as they traverse the medium. Along with the polarization energy loss mechanisms, we also review the possibility of energy gain due to thermal field fluctuations. Lastly, we discuss how these theoretical insights can be tested through experiments and outline possible directions for future research.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-024-01472-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939259","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}
{"title":"Deformed natural orbitals for ab initio calculations","authors":"A. Scalesi, T. Duguet, M. Frosini, V. Somà","doi":"10.1140/epja/s10050-024-01466-5","DOIUrl":"10.1140/epja/s10050-024-01466-5","url":null,"abstract":"<div><p>The rapid development of ab initio nuclear structure methods towards doubly open-shell nuclei, heavy nuclei and greater accuracy occurs at the price of evermore increased computational costs, especially RAM and CPU time. While most of the numerical simulations are carried out by expanding relevant operators and wave functions on the spherical harmonic oscillator basis, alternative one-body bases offering advantages in terms of computational efficiency have recently been investigated. In particular, the so-called natural basis used in combination with symmetry-conserving methods applicable to doubly closed-shell nuclei has proven beneficial in this respect. The present work examines the performance of the natural basis in the context of <i>symmetry-breaking</i> many-body calculations enabling the description of superfluid and deformed open-shell nuclei at polynomial cost with system’s size. First, it is demonstrated that the advantage observed for closed-shell nuclei carries over to open-shell ones. A detailed investigation of natural-orbital wave functions provides useful insight to support this finding and to explain the superiority of the natural basis over alternative ones. Second, it is shown that the use of natural orbitals combined with importance-truncation techniques leads to an even greater gain in terms of computational costs. The present results pave the way for the systematic use of natural-orbital bases in future implementations of non-perturbative many-body methods.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912843","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}
{"title":"Investigation of thermodynamic properties of the nucleus utilizing the modified Ignatyuk method and microscopic models","authors":"Kh. Benam","doi":"10.1140/epja/s10050-024-01471-8","DOIUrl":"10.1140/epja/s10050-024-01471-8","url":null,"abstract":"<div><p>The temperature-dependent level density parameter has been computed using the Ignatyuk method. The Ignatyuk level density parameter has a low temperature sensitivity and it is also obtained as a constant function or independent temperature function for nuclei that have a zero shell correction factor. In the present study, to improve this method, the asymptotic level density parameter mentioned in the Ignatyuk method has been replaced by the modified Lestone level density parameter and the new model called the modified Ignatyuk method (MI). After that, the thermal properties of the nucleus have been described using the MI method. Similarly, by considering temperature-dependent pairing correlation, the nucleus thermodynamic properties have been determined using the Lipkin-Nogami (LN) microscopic model. However, this model produces singularity in the heat capacity diagram due to eliminating pairing effects at the critical temperature. This issue has been modified by substituting the gap parameter with the mean value gap parameter from the Ginzburg-Landau method. This modification is known as the generalized Lipkin-Nogami (GLN) model. Finally, the thermodynamic quantities have been computed using the mentioned models and their results compared with each other as well as the level density compared to the experimental results.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"60 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906062","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}