172 citations · 2.2k across the 119 of their papers we have counts for
88 papers · 1 filter
Bridging Ab Initio Symmetries and Global Nuclear Masses with Interpretable Neural Networks
Phong Dang, Evander Espinoza, Xiaoliang Wan +6
Ab initio theory establishes Wigner's SU(4) and Elliott's SU(3) as dominant symmetries of the nuclear force in light and intermediate-mass nuclei. Previous work shows the relevance…
Unmasking Hidden Wigner's Symmetry from First Principles
Phong Dang, Daniel Langr, Tomas Dytrych +2
We present quantitative evidence that high-quality internucleon forces derived from EFT exhibit a striking dominance of Wigner's supermultiplet symmetry, without invoking the la…
Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model
Wei Teng, Yu Zhang, Sheng-Nan Wang +3
Novel collective modes characterized by a ratio () less than 1.0 that were observed recently have been i…
Triaxial rotor modes in finite-N boson systems
Yu Zhang, ShengNan Wang, Feng Pan +2
We propose an algebraic approach to elucidate the dynamic characteristics of triaxial rotor modes in nuclei by mapping a triaxial rotor Hamiltonian to the interacting boson model (…
Algebraic description of the triaxially to axially rotational shape phase transition
Yu Zhang, Yu Xin Liu, Feng Pan +1
Within the framework of the interacting boson model, we propose a novel algebraic scheme to describe spin-dependent structural evolutions in triaxial nuclei. Our analysis demonstra…
Deep learning approaches for nuclear binding energy prediction: a comparative study of RNN, GRU and LSTM Models
Amir Jalili, Feng Pan, Ai Xi Chen +1
This study investigates the application of deep learning models-recurrent neural networks, gated recurrent units, and long short-term memory networks-for predicting nuclear binding…
Unexpected Rise in Nuclear Collectivity from Short-Range Physics
Kevin S. Becker, Kristina D. Launey, Andreas Ekström +4
We discover a surprising relation between the collective motion of nucleons within atomic nuclei, traditionally understood to be driven by long-range correlations, and short-range…
Uncertainty Quantification of Collective Nuclear Observables From the Chiral Potential Parametrization
Kevin S. Becker, Kristina D. Launey, Andreas Ekström +4
We perform an uncertainty estimate of quadrupole moments and B(E2) transition rates that inform nuclear collectivity. In particular, we study the low-lying states of 6Li and 12C us…
Understanding the Effect of Chiral NN Parametrization on Nuclear Shapes From an Ab Initio Perspective
Kevin S. Becker, Kristina D. Launey, Andreas Ekström +5
The ab initio symmetry-adapted no-core shell model naturally describes nuclear deformation and collectivity, and is therefore well-suited to studying the dynamics and coexistence o…
Ab initio single-neutron spectroscopic overlaps in lithium isotopes
G. H. Sargsyan, K. D. Launey, R. M. Shaffer +5
We calculate single-neutron spectroscopic overlaps for lithium isotopes in the framework of the \textit{ab initio} symmetry-adapted no-core shell model. We report the associated ne…
Anomalous low-energy -related behavior in triaxial nuclei
Yu Zhang, Ying-Wen He, D. Karlsson +3
The anomalous low-energy -related behavior of a triaxially-deformed nucleus bas been identified and analyzed based on the SU(3) algebraic theory within the framework of the int…
New Insights into Backbending in the Symmetry-adapted Framework
Nicholas D. Heller, Grigor H. Sargsyan, Kristina D. Launey +3
We provide new insights into backbending phenomenon within the symmetry-adapted framework which naturally describes the intrinsic deformation of atomic nuclei. For …
Symplectic Effective Field Theory for Nuclear Structure Studies
D. Kekejian, J. P. Draayer, V. I. Mokeev +1
A Symplectic Effective Field Theory that unveils the observed emergence of symplectic symmetry in atomic nuclei is advanced. Specifically, starting from a simple extension of the h…
Efficacy of the symmetry-adapted basis for ab initio nucleon-nucleus interactions for light- and intermediate-mass nuclei
Alexis Mercenne, Kristina D. Launey, Tomas Dytrych +4
We study the efficacy of a new ab initio framework that combines the symmetry-adapted (SA) no-core shell-model approach with the resonating group method (RGM) for unified descripti…
Emergent symplectic symmetry in atomic nuclei: Ab initio symmetry-adapted no-core shell model
Kristina D Launey, Tomáš Dytrych, Grigor H Sargsyan +2
Exact symmetry and symmetry-breaking phenomena play a key role in gaining a better understanding of the physics of many-particle systems, from quarks and atomic nuclei, through mol…
Machine learning approach to pattern recognition in nuclear dynamics from the ab initio symmetry-adapted no-core shell model
O. M. Molchanov, K. D. Launey, A. Mercenne +3
A novel machine learning approach is used to provide further insight into atomic nuclei and to detect orderly patterns amidst a vast data of large-scale calculations. The method ut…
Impact of clustering on the Li decay and recoil form factors
G. H. Sargsyan, K. D. Launey, M. T. Burkey +10
We place unprecedented constraints on recoil corrections in the decay of Li, by identifying a strong correlation between them and the Li ground state quadrupole moment…
SU(3)-guided Realistic Nucleon-nucleon Interactions for Large-scale Calculations
G. H. Sargsyan, K. D. Launey, R. B. Baker +2
We examine nucleon-nucleon realistic interactions, based on their SU(3) decomposition to SU(3)-symmetric components. We find that many of these interaction components are negligibl…
Alpha clustering and alpha-capture reaction rate from ab initio symmetry-adapted description of Ne
A. C. Dreyfuss, K. D. Launey, J. E. Escher +4
We introduce a new framework for studying clustering and for calculating alpha partial widths using ab initio wave functions. We demonstrate the formalism for Ne, by calcula…
Nucleons pair shell model in M-scheme
BingCheng He, Yu Zhang, Lei Li +3
The nucleon pair shell model (NPSM) is casted into the so-called M-scheme for the cases with isospin symmetry and without isospin symmetry. The odd system and even system are treat…
New symmetry-adapted ab initio approach to nuclear reactions for intermediate-mass nuclei
Alexis Mercenne, Kristina D. Launey, Jutta E. Escher +2
With a view toward describing reactions of intermediate-mass nuclei from first principles, we present first results for the norm and Hamiltonian overlaps (kernels) for the p-α, p-1…
Exact isovector pairing in a shell-model framework: Role of proton-neutron correlations in isobaric analog states
M. E. Miora, K. D. Launey, D. Kekejian +2
We utilize a nuclear shell model Hamiltonian with only two adjustable parameters to generate, for the first time, exact solutions for pairing correlations for light to medium-mass…
Electromagnetic Excitations and Responses in Nuclei from First Principles
R. B. Baker, K. D. Launey, N. Nevo Dinur +3
We discuss the role of clustering on monopole, dipole, and quadrupole excitations in nuclei in the framework of the ab initio symmetry-adapted no-core shell model (SA-NCSM). The SA…
An exact solution of spherical mean-field plus orbit-dependent non-separable pairing model with two non-degenerate j-orbits
Feng Pan, Shuli Yuan, Yingwen He +3
An exact solution of nuclear spherical mean-field plus orbit-dependent non-separable pairing model with two non-degenerate j-orbits is presented. The extended one-variable Heine-St…