Testing ab initio nuclear structure in neutron-rich nuclei: lifetime measurements of second 2+ states in 16C and 20O
M. Ciemala, S. Ziliani, F. C. L. Crespi, S. Leoni, B. Fornal, A. Maj, P. Bednarczyk, G. Benzoni, A. Bracco, C. Boiano, S. Bottoni, S. Brambilla, M. Bast, M. Bec… 展开作者
M. Ciemala, S. Ziliani, F. C. L. Crespi, S. Leoni, B. Fornal, A. Maj, P. Bednarczyk, G. Benzoni, A. Bracco, C. Boiano, S. Bottoni, S. Brambilla, M. Bast, M. Beckers, T. Braunroth, F. Camera, N. Cieplicka-Orynczak, E. Clement, S. Coelli, O. Dorvaux, S. Erturk, G. de France, C. Fransen, A. Goldkuhle, J. Grebosz, M. N. Harakeh, L. W. Iskra, B. Jacquot, A. Karpov, M. Kicinska-Habior, Y. Kim, M. Kmiecik, A. Lemasson, S. M. Lenzi, M. Lewitowicz, H. Li, I. Matea, K. Mazurek, C. Michelagnoli, M. Matejska-Minda, B. Million, C. Muller-Gatermann, V. Nanal, P. Napiorkowski, D. R. Napoli, R. Palit, M. Rejmund, Ch. Schmitt, M. Stanoiu, I. Stefan, E. Vardaci, B. Wasilewska, O. Wieland, M. Zieblinski, M. Zielinska, A. Atac, D. Barrientos, B. Birkenbach, A. J. Boston, B. Cederwall, L. Charles, J. Collado, D. M. Cullen, P. Desesquelles, C. Domingo-Pardo, J. Dudouet, J. Eberth, V. Gonzalez, J. Goupil, L. J. Harkness-Brennan, H. Hess, D. S. Judson, A. Jungclaus, W. Korten, M. Labiche, A. Lefevre, R. Menegazzo, D. Mengoni, J. Nyberg, R. M. Perez-Vidal, Zs. Podolyak, A. Pullia, F. Recchia, P. Reiter, F. Saillant, M. D. Salsac, E. Sanchis, O. Stezowski, Ch. Theisen, J. J. Valiente-Dobon, J. D. Holt, J. Menendez, A. Schwenk, J. Simonis
To test the predictive power of ab initio nuclear structure theory, the lifetime of the second 2+ state in neutron-rich 20O, tau(2+_2 ) = 150(+80-30) fs, and an estimate for the lifetime of the second 2+ state in 16C have been obtained, for the first time. The results were achieved via a novel Monte Carlo technique that allowed us to measure nuclear state lifetimes in the tens-to-hundreds femtoseconds range, by analyzing the Doppler-shifted gamma-transition line shapes of products of low-energy transfer and deep-inelastic processes in the reaction 18O (7.0 MeV/u) + 181Ta. The requested sensitivity could only be reached owing to the excellent performances of the AGATA gamma-tracking array, coupled to the PARIS scintillator array and to the VAMOS++ magnetic spectrometer. The experimental lifetimes agree with predictions of ab initio calculations using two- and three-nucleon interactions, obtained with the valence-space in-medium similarity renormalization group for 20O, and with the no-core shell model for 16C. The present measurement shows the power of electromagnetic observables, determined with high-precision gamma spectroscopy, to assess the quality of first-principles nuclear structure calculations, complementing common benchmarks based on nuclear energies. The proposed experimental approach will be essential for short lifetimes measurements in unexplored regions of the nuclear chart, including r-process nuclei, when intense ISOL-type beams become available.
Ab-initio self-consistent Gorkov-Green's function calculations of semi-magic nuclei - II. Numerical implementation at second order with a two-nucleon interaction
Ab initio calculations of monopole sum rules: From finite nuclei to infinite nuclear matter
Facility for Rare Isotope Beams, Michigan State University（稀有同位素束流设施，密歇根州立大学）；Physics Division, Oak Ridge National Laboratory（橡树岭国家实验室物理部）；Technische Universität Darmstadt（达姆施塔特工业大学）；ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH（极端物质研究所EMMI，GSI重离子研究中心有限公司）；Institut für Kernphysik and PRISMA+ Cluster of Excellence, Johannes Gutenberg-Universität Mainz（约翰内斯·古腾堡美因茨大学核物理研究所及PRISMA+卓越集群）；Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz（亥姆霍兹美因茨研究所，约翰内斯·古腾堡美因茨大学）；Max-Planck-Institut für Kernphysik（马克斯·普朗克核物理研究所）
Ab initio calculations of beta-decay half-lives for $N=50$ neutron-rich nuclei
Technische Universität Darmstadt（达姆施塔特工业大学）；ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH（极端物质研究所（EMMI），GSI亥姆霍兹重离子研究中心有限公司）；Max-Planck-Institut für Kernphysik（马克斯·普朗克核物理研究所）；Center for Computational Sciences, University of Tsukuba（筑波大学计算科学中心）
Ab initio calculation of symmetry-breaking observables
Massachusetts Institute of Technology（麻省理工学院）；University of North Carolina（北卡罗来纳大学）；Quantum CodeX（量子代码X）；University of Tsukuba（筑波大学）；McMaster University（麦克马斯特大学）；TRIUMF（特里姆夫实验室）；University of Victoria（维多利亚大学）；University of Tennessee（田纳西大学）；University of Notre Dame（圣母大学）；McGill University（麦吉尔大学）
Ab initio lattice calculation of nuclear magnetic dipole moments with systematic error quantifications
School of Physics, Peking University（北京大学物理学院）；Gaziantep Islam Science and Technology University（加济安泰普伊斯兰科学与技术大学）；Center for High Energy Physics, Peking University（北京大学高能物理中心）；Collaborative Innovation Center of Quantum Matter（量子物质协同创新中心）；Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences（中国科学院近代物理研究所南方核科学理论中心（SCNT））；Facility for Rare Isotope Beams and Department of Physics and Astronomy, Michigan State University（密歇根州立大学稀有同位素束流设施及物理与天文学系）；Graduate School of China Academy of Engineering Physics（中国工程物理研究院研究生院）；Key Laboratory of Atomic and Subatomic Structure and Quantum Control (MOE), Institute of Quantum Matter, South China Normal University（华南师范大学量子物质研究所原子与亚原子结构及量子控制重点实验室（教育部））
Multi-neutron correlations in light nuclei via ab-initio lattice simulations
Forschungszentrum Jülich（于利希研究中心）；King Fahd University of Petroleum and Minerals (KFUPM)（法赫德国王石油与矿物大学）；Gaziantep Islam Science and Technology University（加济安泰普伊斯兰科学与技术大学）；Universität Bonn（波恩大学）；Beihang University（北京航空航天大学）
