Search Results - "Launey, Kristina D"

Nuclear Dynamics and Reactions in the Ab Initio Symmetry-Adapted Framework by Launey, Kristina D, Mercenne, Alexis, Dytrych, Tomas

“…We review the ab initio symmetry-adapted (SA) framework for determining the structure of stable and unstable nuclei, along with related electroweak, decay, and…”
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A 21st Century View of Nuclear Structure by Baker, Robert B, Draayer, Jerry P, Sargsyan, Grigor H, Dreyfuss, Alison C, Dytrych, Tomáš, Kekejian, David, Launey, Kristina D, Mercenne, Alexis

“…Exploiting exact and special symmetries to unmask simplicity within complexity, which remains the “holy grail” of nuclear physics, will be considered within…”
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Shannon information entropy for a hyperbolic double-well potential by Sun, Guo-Hua, Dong, Shi-Hai, Launey, Kristina D., Dytrych, Tomas, Draayer, Jerry P.

“…We use the ansatz method to obtain the symmetric and antisymmetric solutions of a hyperbolic double‐well potential by solving the Heun differential equation…”
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On the importance of np-pairs in the isovector pairing model by Pan, Feng, Qi, Chong, Dai, Lianrong, Sargsyan, Grigor, Launey, Kristina D., Draayer, Jerry P.

“…It is shown that the isovector np-pair number operator can be realized in the O(5) quasi-spin basis. The computation of the isovector np-pair number is…”
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Numerical algorithm for the standard pairing problem based on the Heine–Stieltjes correspondence and the polynomial approach by Guan, Xin, Launey, Kristina D., Xie, Mingxia, Bao, Lina, Pan, Feng, Draayer, Jerry P.

“…We present a detailed study of the computational complexity of a numerical algorithm based on the Heine–Stieltjes correspondence following the new approach we…”
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Accelerating many-nucleon basis generation for high performance computing enabled ab initio nuclear structure studies by Langr, Daniel, Dytrych, Tomáš, Launey, Kristina D, Draayer, Jerry P

“…We present the problem of generating a many-nucleon basis in SU ( 3 ) -scheme for ab initio nuclear structure calculations in a symmetry-adapted no-core shell…”
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Nuclear Forces for Precision Nuclear Physics: A Collection of Perspectives by Tews, Ingo, Davoudi, Zohreh, Ekström, Andreas, Holt, Jason D., Becker, Kevin, Briceño, Raúl, Dean, David J., Detmold, William, Drischler, Christian, Duguet, Thomas, Epelbaum, Evgeny, Gasparyan, Ashot, Gegelia, Jambul, Green, Jeremy R., Grießhammer, Harald W., Hanlon, Andrew D., Heinz, Matthias, Hergert, Heiko, Hoferichter, Martin, Illa, Marc, Kekejian, David, Kievsky, Alejandro, König, Sebastian, Krebs, Hermann, Launey, Kristina D., Lee, Dean, Navrátil, Petr, Nicholson, Amy, Parreño, Assumpta, Phillips, Daniel R., Płoszajczak, Marek, Ren, Xiu-Lei, Richardson, Thomas R., Robin, Caroline, Sargsyan, Grigor H., Savage, Martin J., Schindler, Matthias R., Shanahan, Phiala E., Springer, Roxanne P., Tichai, Alexander, Kolck, Ubirajara van, Wagman, Michael L., Walker-Loud, André, Yang, Chieh-Jen, Zhang, Xilin

“…This is a collection of perspective pieces contributed by the participants of the Institute for Nuclear Theory’s Program on Nuclear Physics for Precision…”
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Exact solution of mean-field plus an extended T=1 nuclear pairing Hamiltonian in the seniority-zero symmetric subspace by Pan, Feng, Ding, Xiaoxue, Launey, Kristina D., Dai, Lianrong, Draayer, Jerry P.

“…An extended pairing Hamiltonian that describes multi-pair interactions among isospin T=1 and angular momentum J=0 neutron–neutron, proton–proton, and…”
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Level statistics of the spherical mean-field plus pairing model by Pan, Feng, Guan, Xin, Launey, Kristina D., Gu, Jianzhong, Draayer, Jerry P.

“…The level statistics of the spherical mean-field plus pairing model is investigated based on the exact solutions obtained from the extended Heine-Stieltjes…”
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New studies and predictions for nuclear clustering and dynamics in the ab initio symmetry-adapted framework by Launey, Kristina D., Mumma, Darin C., Becker, Kevin S., Sargsyan, Grigor H., Good, William P., Baniecki, Adriana R., Kelly, Aidan W., Mercenne, Alexis

“…We discuss recent studies and predictions for nuclear clustering and dynamics within the framework of the ab initio symmetry-adapted no-core shell model, which…”
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Chiral uncertainties in ab initio elastic nucleon-nucleus scattering by Baker, Robert B., Burrows, Matthew, Elster, Charlotte, Launey, Kristina D., Maris, Pieter, Popa, Gabriela, Weppner, Stephen P.

“…The effective interaction between a nucleon and a nucleus is one of the most important ingredients for reaction theories. Theoretical formulations were…”
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Emergent symmetries in atomic nuclei: Probing nuclear dynamics and physics beyond the standard model by Launey, Kristina D., Becker, K. S., Sargsyan, G. H., Molchanov, O. M., Burrows, M., Mercenne, A., Dytrych, T., Langr, D., Draayer, J. P.

“…Dominant shapes naturally emerge in atomic nuclei from first principles, thereby establishing the shape-preserving symplectic Sp(3, \mathbb{R} ℝ ) symmetry as…”
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Symmetry-guided large-scale shell-model theory by Launey, Kristina D., Dytrych, Tomas, Draayer, Jerry P.

“…In this review, we present a symmetry-guided strategy that utilizes exact as well as partial symmetries for enabling a deeper understanding of and advancing ab…”
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SU3lib: A C++ library for accurate computation of Wigner and Racah coefficients of SU(3) by Dytrych, Tomáš, Langr, Daniel, Draayer, Jerry P., Launey, Kristina D., Gazda, Daniel

“…We present the C++ library SU3lib for accurate computation of SU(3) Wigner coupling and Racah recoupling coefficients. It is built on the efficient…”
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Emergent symplectic symmetry in atomic nuclei: Ab initio symmetry-adapted no-core shell model by Launey, Kristina D., Dytrych, Tomáš, Sargsyan, Grigor H., Baker, Robert B., Draayer, Jerry P.

“…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…”
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Efficient algorithm for representations of U(3) in U(N) by Langr, Daniel, Dytrych, Tomáš, Draayer, Jerry P., Launey, Kristina D., Tvrdík, Pavel

“…An efficient algorithm for enumerating representations of U(3) that occur in a representation of the unitary group U(N) is introduced. The algorithm is…”
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Hoyle state and rotational features in Carbon-12 within a no-core shell-model framework by Dreyfuss, Alison C., Launey, Kristina D., Dytrych, Tomáš, Draayer, Jerry P., Bahri, Chairul

“…By using only a fraction of the model space extended beyond current no-core shell-model limits and a many-nucleon interaction with a single parameter, we gain…”
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A new procedure for constructing basis vectors of SU(3)⊃SO(3) by Pan, Feng, Yuan, Shuli, Launey, Kristina D., Draayer, Jerry P.

“…A simple and effective algebraic angular momentum projection procedure for constructing basis vectors of SU(3)⊃SO(3)⊃SO(2) from the canonical U(3)⊃U(2)⊃U(1)…”
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Uncertainty quantification of collective nuclear observables from the chiral potential parametrization by Becker, Kevin S, Launey, Kristina D, Ekström, Andreas, Dytrych, Tomáš, Langr, Daniel, Sargsyan, Grigor H, Draayer, Jerry P

“…Abstract We perform an uncertainty estimate of quadrupole moments and B(E2) transition rates that inform nuclear collectivity. In particular, we study the…”
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Overlaps of deformed and non-deformed harmonic oscillator basis states by Kekejian, David, Draayer, Jerry P., Dytrych, Tomáš, Launey, Kristina D.

“…•Analytic results were derived for the first time between deformed and non-deformed harmonic oscillator basis states.•The overlaps are independent of the…”
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