Angelo Calci
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View article: Few-nucleon and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces
Few-nucleon and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces Open
We employ a variety of ab initio methods, including Faddeev-Yakubovsky equations, no-core configuration interaction approach, coupled-cluster theory, and in-medium similarity renormalization group, to perform a comprehensive analysis of th…
View article: Microscopic optical potentials derived from <i>ab initio</i> translationally invariant nonlocal one-body densities
Microscopic optical potentials derived from <i>ab initio</i> translationally invariant nonlocal one-body densities Open
We derive a microscopic optical potential for intermediate energies using ab initio translationally invariant nonlocal one-body nuclear densities computed within the no-core shell model (NCSM) approach utilizing two- and three-nucleon chir…
View article: Nucleus-Dependent Valence-Space Approach to Nuclear Structure
Nucleus-Dependent Valence-Space Approach to Nuclear Structure Open
We present a nucleus-dependent valence-space approach for calculating ground and excited states of nuclei, which generalizes the shell-model in-medium similarity renormalization group to an ensemble reference with fractionally filled orbit…
View article: Sensitivities and correlations of nuclear structure observables emerging from chiral interactions
Sensitivities and correlations of nuclear structure observables emerging from chiral interactions Open
Starting from a set of different two- and three-nucleon interactions from\nchiral effective field theory, we use the importance-truncated no-core shell\nmodel for ab initio calculations of excitation energies as well as electric\nquadrupol…
View article: Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces
Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces Open
We apply improved nucleon-nucleon potentials up to fifth order in chiral effective field theory, along with a new analysis of the theoretical truncation errors to study nucleon-deuteron (Nd) scattering and selected low-energy observables i…
View article: Unified<i>ab initio</i>approaches to nuclear structure and reactions
Unified<i>ab initio</i>approaches to nuclear structure and reactions Open
Contribution to the Special Physica Scripta Edition - 40 year anniversary - Nobel Prize '75, 71 pages, 29 figures
View article: Open-shell nuclei and excited states from multireference normal-ordered Hamiltonians
Open-shell nuclei and excited states from multireference normal-ordered Hamiltonians Open
We discuss the approximate inclusion of three-nucleon interactions into ab initio nuclear structure calculations using a multi-reference formulation of normal ordering and Wick's theorem. Following the successful application of single-refe…
View article: Ab initio calculations of reactions with light nuclei
Ab initio calculations of reactions with light nuclei Open
An {\\em ab initio} (i.e., from first principles) theoretical framework\ncapable of providing a unified description of the structure and low-energy\nreaction properties of light nuclei is desirable to further our understanding\nof the fund…
View article: Ab Initio No Core Shell Model - Recent Results and Further Prospects
Ab Initio No Core Shell Model - Recent Results and Further Prospects Open
There has been significant recent progress in solving the long-standing problems of how nuclear shell structure and collective motion emerge from underlying microscopic inter-nucleon interactions. We review a selection of recent significan…