Nuclear Physics A最新文献

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What's new? An ab initio investigation of the 3He-4He radiative capture into 7Be 有什么新鲜事吗?3He-4He辐射俘获7Be的从头算研究
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-23 DOI: 10.1016/j.nuclphysa.2025.123158
M.C. Atkinson , K. Kravvaris , S. Quaglioni , P. Navrátil
{"title":"What's new? An ab initio investigation of the 3He-4He radiative capture into 7Be","authors":"M.C. Atkinson ,&nbsp;K. Kravvaris ,&nbsp;S. Quaglioni ,&nbsp;P. Navrátil","doi":"10.1016/j.nuclphysa.2025.123158","DOIUrl":"10.1016/j.nuclphysa.2025.123158","url":null,"abstract":"<div><div>The <sup>3</sup>He<span><math><msup><mrow><mo>(</mo><mi>α</mi><mo>,</mo><mi>γ</mi><mo>)</mo></mrow><mrow><mn>7</mn></mrow></msup></math></span>Be radiative capture reaction plays an important role in the creation of elements in stars and in the production of solar neutrinos. It is difficult to experimentally measure this fusion cross section at energies relevant to solar processes because of Coulomb repulsion. Therefore, theory is needed to perform extrapolations from higher energies (where experimental fusion measurements are feasible) to the astrophysical regime. We present the first microscopic calculations of <sup>3</sup>He<span><math><msup><mrow><mo>(</mo><mi>α</mi><mo>,</mo><mi>γ</mi><mo>)</mo></mrow><mrow><mn>7</mn></mrow></msup></math></span>Be with explicit inclusion of three-nucleon forces. With the incorporation of experimental bound-state and scattering information, our calculation of the astrophysical <em>S</em> factor agrees quantitatively with experimental data.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123158"},"PeriodicalIF":1.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146914","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
Study of β-decay properties of N = 81 & 82 isotones N = 81和82等音的β衰变性质研究
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-21 DOI: 10.1016/j.nuclphysa.2025.123169
Jameel-Un Nabi, Abuzar, Arslan Mehmood
{"title":"Study of β-decay properties of N = 81 & 82 isotones","authors":"Jameel-Un Nabi,&nbsp;Abuzar,&nbsp;Arslan Mehmood","doi":"10.1016/j.nuclphysa.2025.123169","DOIUrl":"10.1016/j.nuclphysa.2025.123169","url":null,"abstract":"<div><div>The <em>r</em>-process is the producer of about 50% total heavy elements existing beyond iron and plays a key role in the neutronization of massive stars and heavier nuclei. <em>β</em>-decay properties of waiting-point nuclei are necessary to determine the <em>r</em>-process path. In this investigation, we study the <em>β</em>-decay properties of <em>N</em> = 81 and 82 neutron-rich nuclei having <em>Z</em> = (42 - 49). We employ the proton-neutron Quasiparticle Random Phase Approximation (pn-QRPA) model to calculate Gamow-Teller transitions, <em>β</em>-decay half-lives, neutron emission probabilities and stellar rates of these neutron-rich isotones. Our investigation includes only allowed transitions. We compare our results with previous calculations and measured data where available. Our model reproduced 100% (82%) terrestrial <em>β</em>-decay half-lives within a factor 10 (2). Our model predictions are in decent agreement with the experimental data. We present the stellar weak rates of these neutron-rich nuclei for the first time. The calculated weak rates were found to be impactful only at low densities (≤ 10<sup>7</sup> g<!--> <!-->cm<sup>−3</sup>) or high temperatures (∼ 30 GK) of the stellar core. The reported stellar rates could prove useful for <em>r</em>-process nucleosynthesis calculations and simulations of late time stellar evolution.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123169"},"PeriodicalIF":1.7,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124293","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
Symplectic symmetry approach to multicluster nuclear systems: The case of 16O 多簇核系统的辛对称方法:以16O为例
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-19 DOI: 10.1016/j.nuclphysa.2025.123162
H.G. Ganev
{"title":"Symplectic symmetry approach to multicluster nuclear systems: The case of 16O","authors":"H.G. Ganev","doi":"10.1016/j.nuclphysa.2025.123162","DOIUrl":"10.1016/j.nuclphysa.2025.123162","url":null,"abstract":"<div><div>Symplectic symmetry approach to clustering (SSAC) in the atomic nucleus is generalized for the more general multicluster nuclear systems. In the limiting case when <span><math><msub><mrow><mi>A</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>=</mo><msub><mrow><mi>A</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>=</mo><mo>…</mo><mo>=</mo><msub><mrow><mi>A</mi></mrow><mrow><mi>k</mi></mrow></msub><mo>=</mo><mn>4</mn></math></span> one obtains a microscopic counterpart within the SSAC of the wide class of various multi-<em>α</em>-particle cluster models. As an example, the new microscopic approach is applied to the 4<em>α</em> cluster nuclear system of <sup>16</sup>O. A good description for the excited states in the lowest <span><math><msup><mrow><mi>K</mi></mrow><mrow><mi>π</mi></mrow></msup><mo>=</mo><msubsup><mrow><mn>0</mn></mrow><mrow><mn>1</mn></mrow><mrow><mo>+</mo></mrow></msubsup></math></span>, <span><math><msup><mrow><mi>K</mi></mrow><mrow><mi>π</mi></mrow></msup><mo>=</mo><msubsup><mrow><mn>0</mn></mrow><mrow><mn>2</mn></mrow><mrow><mo>+</mo></mrow></msubsup></math></span>, <span><math><msup><mrow><mi>K</mi></mrow><mrow><mi>π</mi></mrow></msup><mo>=</mo><msubsup><mrow><mn>0</mn></mrow><mrow><mn>1</mn></mrow><mrow><mo>−</mo></mrow></msubsup></math></span>, <span><math><msup><mrow><mi>K</mi></mrow><mrow><mi>π</mi></mrow></msup><mo>=</mo><msubsup><mrow><mn>2</mn></mrow><mrow><mn>1</mn></mrow><mrow><mo>+</mo></mrow></msubsup></math></span>, <span><math><msup><mrow><mi>K</mi></mrow><mrow><mi>π</mi></mrow></msup><mo>=</mo><msubsup><mrow><mn>3</mn></mrow><mrow><mn>1</mn></mrow><mrow><mo>−</mo></mrow></msubsup></math></span> and <span><math><msup><mrow><mi>K</mi></mrow><mrow><mi>π</mi></mrow></msup><mo>=</mo><msubsup><mrow><mn>1</mn></mrow><mrow><mn>1</mn></mrow><mrow><mo>−</mo></mrow></msubsup></math></span> bands in <sup>16</sup>O with experiment, as well as for the experimentally known <span><math><mi>B</mi><mo>(</mo><mi>E</mi><mn>2</mn><mo>)</mo></math></span> low-energy transitions without the use of an effective charge, is obtained.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123162"},"PeriodicalIF":1.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106403","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
A new determination of the (Z,A) dependence of coherent muon-to-electron conversion 相干介子-电子转换(Z,A)依赖性的新测定
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-16 DOI: 10.1016/j.nuclphysa.2025.123161
Léo Borrel, David G. Hitlin, Sophie Middleton
{"title":"A new determination of the (Z,A) dependence of coherent muon-to-electron conversion","authors":"Léo Borrel,&nbsp;David G. Hitlin,&nbsp;Sophie Middleton","doi":"10.1016/j.nuclphysa.2025.123161","DOIUrl":"10.1016/j.nuclphysa.2025.123161","url":null,"abstract":"<div><div>Should muon-to-electron conversion in the field of a nucleus be found in the current generation of experiments, the measurement of the atomic number dependence of the process will become an important experimental goal. We present a new treatment of the (Z,A) dependence of coherent muon-to-electron conversion in 236 isotopes. Our approach differs from previous treatments in several ways. Firstly, we include the effect of permanent quadrupole deformation on the charged lepton flavor violating matrix elements, using the method of Barrett moments. This method also enables the addition of muonic X-ray nuclear size and shape determinations of the charge distribution to the electron scattering results used previously. Secondly, we employ the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) to calculate neutron-related matrix elements for even-even nuclei. This takes into account the quadrupole deformation of the neutron distributions and the fact that neutrons are, in general, in different shell model orbits than protons. The calculated conversion rates differ from previous calculations, particularly in the region of large permanent quadrupole deformation. Finally, we propose an alternative normalization of the muon-to-electron conversion rate, which is related more closely to what a given experiment actually measures, and better separates lepton physics from nuclear physics effects.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123161"},"PeriodicalIF":1.7,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099660","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
Microscopic insights into the structure of even-even 144−148Ce isotopes 144−148Ce同位素的微观结构
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-15 DOI: 10.1016/j.nuclphysa.2025.123156
Umera Nawaz , Manvi Rajput , Suram Singh , G.H. Bhat , Arun Bharti , J.A. Sheikh
{"title":"Microscopic insights into the structure of even-even 144−148Ce isotopes","authors":"Umera Nawaz ,&nbsp;Manvi Rajput ,&nbsp;Suram Singh ,&nbsp;G.H. Bhat ,&nbsp;Arun Bharti ,&nbsp;J.A. Sheikh","doi":"10.1016/j.nuclphysa.2025.123156","DOIUrl":"10.1016/j.nuclphysa.2025.123156","url":null,"abstract":"<div><div>A comprehensive analysis is done to study the structural evolution and triaxial deformation in the even-even <sup>144−148</sup>Ce isotopes using Triaxial Projected Shell Model (TPSM) approach. A thorough investigation of the yrast and <em>γ</em>-band explains the shape transition and presence of gamma collectivity in these neutron rich nuclei. Various observables and phenomena like <span><math><msub><mrow><mi>R</mi></mrow><mrow><mn>4</mn><mo>/</mo><mn>2</mn></mrow></msub></math></span> ratios, odd-even staggering patterns in <em>γ</em>-bands, shape invariants, reduced transition probabilities, g-factors etc. have been calculated and found to be reasonably consistent with the available experimental data. Also, these results reveal a progressive shape evolution from <em>γ</em>-soft towards axially symmetric rotor at N=90. This study enhances our understanding of nuclear deformation mechanisms in this critical mass region by revealing the structural changes driven by multiquasiparticle configurations.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1061 ","pages":"Article 123156"},"PeriodicalIF":1.7,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083809","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
Probing the pygmy dipole resonance of 50Ca by Coulomb excitation 用库仑激发探测50Ca的矮偶极子共振
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-13 DOI: 10.1016/j.nuclphysa.2025.123152
J. Lemarié , Y. Togano , T. Nakamura , T. Kobayashi , T. Aumann , H. Baba , K. Boretzky , A. Bracco , F. Browne , F. Camera , H. Chae , S. Chan , N. Chiga , H. Choi , L. Cortés , F. Delaunay , D. Dell'Aquila , Z. Elekes , Y. Fujino , I. Gašparić , K. Yoneda
{"title":"Probing the pygmy dipole resonance of 50Ca by Coulomb excitation","authors":"J. Lemarié ,&nbsp;Y. Togano ,&nbsp;T. Nakamura ,&nbsp;T. Kobayashi ,&nbsp;T. Aumann ,&nbsp;H. Baba ,&nbsp;K. Boretzky ,&nbsp;A. Bracco ,&nbsp;F. Browne ,&nbsp;F. Camera ,&nbsp;H. Chae ,&nbsp;S. Chan ,&nbsp;N. Chiga ,&nbsp;H. Choi ,&nbsp;L. Cortés ,&nbsp;F. Delaunay ,&nbsp;D. Dell'Aquila ,&nbsp;Z. Elekes ,&nbsp;Y. Fujino ,&nbsp;I. Gašparić ,&nbsp;K. Yoneda","doi":"10.1016/j.nuclphysa.2025.123152","DOIUrl":"10.1016/j.nuclphysa.2025.123152","url":null,"abstract":"<div><div>An experiment to measure the electric dipole response of <sup>50</sup>Ca by Coulomb excitation in inverse kinematics has been carried out at RIKEN - RIBF. The combination of the SAMURAI spectrometer, the <em>γ</em>-ray detector array CATANA and both NeuLAND demonstrator and NEBULA for neutron detection allow to reconstruct the excitation energy spectra by invariant mass spectroscopy.</div><div>The reaction channels <sup>50</sup>Ca → <sup>49</sup>Ca+n and <sup>50</sup>Ca → <sup>48</sup>Ca+n+n have been investigated. One sharp peak at low neutron relative energy for the 1 neutron emission channel may be a candidate for a Pygmy Dipole Resonance. Correlation of <em>γ</em>-ray and neutron energy shows possible structure effect in the decay of the <sup>50</sup>Ca projectile.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123152"},"PeriodicalIF":1.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069360","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
Preliminary results on nuclear isomer production via laser-driven bremsstrahlung irradiation at ELI-NP-1PW ELI-NP-1PW激光驱动轫致辐射产生核异构体的初步结果
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-12 DOI: 10.1016/j.nuclphysa.2025.123157
G. Giubega , Y. Nakamiya , F. D'Souza , V.L.J. Phung , I. Slabu , V. Iancu , L. Neagu , J.F. Ong , M. Dobre , A. Balaceanu , C. Vancea , L. Tudor , G. Cojocaru , S. Norbaev , A. Naziru , L. Vasescu , A. Toma , A. Dumitru , A. Berceanu , M. Rosu , O. Tesileanu
{"title":"Preliminary results on nuclear isomer production via laser-driven bremsstrahlung irradiation at ELI-NP-1PW","authors":"G. Giubega ,&nbsp;Y. Nakamiya ,&nbsp;F. D'Souza ,&nbsp;V.L.J. Phung ,&nbsp;I. Slabu ,&nbsp;V. Iancu ,&nbsp;L. Neagu ,&nbsp;J.F. Ong ,&nbsp;M. Dobre ,&nbsp;A. Balaceanu ,&nbsp;C. Vancea ,&nbsp;L. Tudor ,&nbsp;G. Cojocaru ,&nbsp;S. Norbaev ,&nbsp;A. Naziru ,&nbsp;L. Vasescu ,&nbsp;A. Toma ,&nbsp;A. Dumitru ,&nbsp;A. Berceanu ,&nbsp;M. Rosu ,&nbsp;O. Tesileanu","doi":"10.1016/j.nuclphysa.2025.123157","DOIUrl":"10.1016/j.nuclphysa.2025.123157","url":null,"abstract":"<div><div>In this contribution we present the preliminary results regarding laser-driven nuclear isomer-production obtained during the commissioning of 1 PW-E7 experimental area at ELI-NP. The study of nuclear isomers production and their photoreactions has been a subject of lasting interest in the nuclear physics community. Nuclear isomers play a crucial role in the creation of the elements in the Universe and in controlled nuclear energy release. The high-intensity and ultra-short pulsed lasers, available at ELI-NP facility, have a great advantage for studying isomeric states with life-times that are impractical to investigate by using conventional accelerator or nuclear reactor experiments. The 1 PW high-power laser was focused on 1 mm supersonic gas jet (mixture of 98% He-2% N<sub>2</sub>) at laser pulse energy on target of E<span><math><msub><mrow></mrow><mrow><mi>L</mi><mi>o</mi><mi>n</mi><mi>T</mi></mrow></msub></math></span>≈20 J in order to generate electron bunches via the Laser Wakefield Acceleration. Electrons with energies up to 500 MeV were obtained at laser intensity on target of 2-2.5x10<sup>20</sup> W/cm<sup>2</sup> and 10 bar backing pressure of 98% He-2% N<sub>2</sub> gas jets. Intense bremsstrahlung radiation was further generated by impinging the laser-accelerated-electrons on a 10-mm-thick <sup>181</sup>Ta photo-converter placed before the natural In target. Several indium isomers were produced using the laser-driven bremsstrahlung irradiation, e.g. <span><math><msup><mrow></mrow><mrow><mn>113</mn><mi>m</mi></mrow></msup></math></span>In, <span><math><msup><mrow></mrow><mrow><mn>115</mn><mi>m</mi></mrow></msup></math></span>In and <span><math><msup><mrow></mrow><mrow><mn>116</mn><mi>m</mi></mrow></msup></math></span>In.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123157"},"PeriodicalIF":1.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948786","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
Mirror symmetry in the f7/2 shell below 56Ni, excited states and electromagnetic transition rates in 55Ni and 55Co 56Ni以下f7/2壳层的镜面对称性,55Ni和55Co的激发态和电磁跃迁速率
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-12 DOI: 10.1016/j.nuclphysa.2025.123151
H. Asch , C. Andreoiu , C. Angus , D. Annen , M.D.H.K.G. Badanage , G.C. Ball , S. Buck , R.J. Coleman , B. Davids , P.E. Garrett , E. Geerlof , S. Georges , B. Greaves , G. Hackman , J.D. Holt , K. Hudson , V. Karayonchev , E. Kasanda , P. Machule , M.S. Martin , Z. Yu
{"title":"Mirror symmetry in the f7/2 shell below 56Ni, excited states and electromagnetic transition rates in 55Ni and 55Co","authors":"H. Asch ,&nbsp;C. Andreoiu ,&nbsp;C. Angus ,&nbsp;D. Annen ,&nbsp;M.D.H.K.G. Badanage ,&nbsp;G.C. Ball ,&nbsp;S. Buck ,&nbsp;R.J. Coleman ,&nbsp;B. Davids ,&nbsp;P.E. Garrett ,&nbsp;E. Geerlof ,&nbsp;S. Georges ,&nbsp;B. Greaves ,&nbsp;G. Hackman ,&nbsp;J.D. Holt ,&nbsp;K. Hudson ,&nbsp;V. Karayonchev ,&nbsp;E. Kasanda ,&nbsp;P. Machule ,&nbsp;M.S. Martin ,&nbsp;Z. Yu","doi":"10.1016/j.nuclphysa.2025.123151","DOIUrl":"10.1016/j.nuclphysa.2025.123151","url":null,"abstract":"<div><div>Mirror nuclei near doubly magic <sup>56</sup>Ni are being explored at TRIUMF, Canada's particle accelerator center. A stable <sup>20</sup>Ne beam experiment to produce <sup>55</sup>Co and a complimentary radioactive <sup>21</sup>Na beam experiment to produce <sup>55</sup>Ni were conducted. These experiments leveraged TIGRESS for <em>γ</em> rays, SFU's TIP CsI Ball for charged particles, specialized Ca targetry, and Doppler-shift lifetime methods. Additionally, the <sup>55</sup>Ni experiment used EMMA for enhanced selectivity. These experiments aim to identify the energies, spins, and parities of excited states in <sup>55</sup>Ni, establish mirror energy differences between <sup>55</sup>Ni and <sup>55</sup>Co, compare the excitation of reaction products at different beam energies (50, 55, 60 MeV) for <sup>55</sup>Co, measure the temperature of <sup>60</sup>Zn and <sup>61</sup>Ga compound nuclei, measure EM transition rates for the states in <sup>55</sup>Ni and <sup>55</sup>Co, and provide reliable data for shell model calculations for hole states in the <span><math><msub><mrow><mi>f</mi></mrow><mrow><mn>7</mn><mo>/</mo><mn>2</mn></mrow></msub></math></span> nuclear orbital near <sup>56</sup>Ni. This proceeding reviews the methodology behind and current state of the <sup>55</sup>Co experiment analysis with preliminary results.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123151"},"PeriodicalIF":1.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139457","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
Detector developments for HISPEC/DESPEC collaboration at the Slovenian Nuclear Instrumentation Laboratory 斯洛文尼亚核仪器实验室HISPEC/DESPEC合作的探测器开发
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-12 DOI: 10.1016/j.nuclphysa.2025.123159
J. Vesic , G. Kosir , M. Vencelj , K. Zagar , E. Lovsin , HISPEC/DESPEC collaboration
{"title":"Detector developments for HISPEC/DESPEC collaboration at the Slovenian Nuclear Instrumentation Laboratory","authors":"J. Vesic ,&nbsp;G. Kosir ,&nbsp;M. Vencelj ,&nbsp;K. Zagar ,&nbsp;E. Lovsin ,&nbsp;HISPEC/DESPEC collaboration","doi":"10.1016/j.nuclphysa.2025.123159","DOIUrl":"10.1016/j.nuclphysa.2025.123159","url":null,"abstract":"<div><div>In this paper, we aim to present the detector developments for the HISPEC/DESPEC (HIgh-resolution in-flight SPECtroscopy/DEcay SPECtroscopy) collaboration at the Slovenian Nuclear Instrumentation Laboratory. The <span><math><mi>Δ</mi><mi>E</mi><mo>−</mo><mi>E</mi></math></span> telescope array will be one of the crucial tracking detectors of the HISPEC-10 campaign. A prototype of the <span><math><mi>Δ</mi><mi>E</mi><mo>−</mo><mi>E</mi></math></span> telescope was constructed along with its cooling. For fast timing measurements, a time resolution of the implantation detectors better than 1 ns and the capability to detect and distinguish between ion implantation and subsequent decays are needed. Scintillating fibres are used for a Fibre IMPlanter (FIMP) to fulfil these requirements. DEGAS (DEspec Germanium Array Spectrometer) is a key instrument of DESPEC and is planned to be operated in most future experimental campaigns. To further improve the sensitivity of the array, shielding of the environmental background with active and passive components is planned. Shielding directly behind the HPGe detectors is based on the BGO scintillation detectors. The BGO detector was characterized, and its performance was compared with a simple gamma-ray propagation simulation.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1062 ","pages":"Article 123159"},"PeriodicalIF":1.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949032","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
Influence of the rearrangement contribution of single-particle potential to the nucleus-nucleus interaction and its impact on fusion cross section 单粒子势重排对核-核相互作用的影响及其对聚变截面的影响
IF 1.7 4区 物理与天体物理
Nuclear Physics A Pub Date : 2025-05-12 DOI: 10.1016/j.nuclphysa.2025.123153
W.M. Seif , A. Adel , F.A. Fareed
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