60 citations · 290 across the 17 of their papers we have counts for
17 papers
Emulation of Proton-Deuteron Scattering via the Reduced Basis Method and Active Learning: Detailed Description
Alex Gnech, Xilin Zhang, Christian Drischler +5
Nucleon-deuteron () scattering can be used to constrain three-nucleon forces in chiral effective field theory (EFT). However, high-fidelity calculations, such as the Hypersp…
Accurate and Efficient Emulation of Proton-Deuteron Scattering via the Reduced Basis Method and Active Learning
Alex Gnech, Xilin Zhang, Christian Drischler +5
We introduce highly accurate and efficient emulators for proton-deuteron scattering below the deuteron breakup threshold. We explore two different reduced-basis method strategies:…
The excited state of the -particle: a benchmark study
Pierre-Yves Duerinck, Arnoldas Deltuva, Jérémy Dohet-Eraly +5
A benchmark study is performed for the excited state of He. When the Coulomb interaction is switched off, the He nucleus exhibits a bound excited state in the vicinity of $…
ToMCCA-3: A realistic 3-body coalescence model
Maximilian Mahlein, Bhawani Singh, Michele Viviani +4
The formation of light nuclei in high-energy collisions provides valuable insights into the underlying dynamics of the strong interaction and the structure of the particle-emitting…
nuclear contact coefficients in the Generalized Contact Formalism
Eleonora Proietti, Laura Elisa Marcucci, Michele Viviani
This work focuses on extracting nuclear contact coefficients for \( A = 2 \), \( A = 3 \) and \( A = 4 \) nuclei within the Generalized Contact Formalism framework. We investigate…
The renormalization of the shell-model GT operator starting from effective field theory for nuclear systems
L. Coraggio, N. Itaco, G. De Gregorio +5
For the first time, we approach in this work the problem of the renormalization of the Gamow-Teller decay operator for nuclear shell-model calculations by way of many-body perturba…
Time Reversal Violation in Light Nuclei
A. Gnech, M. Viviani
Time Reversal Violation (TRV) interactions between quarks which appear in Standard Model (SM) and beyond-SM theories can induce TRV components in the nucleon-nucleon potential. The…
Short-range three-nucleon interaction from A=3 data and its hierarchical structure
L. Girlanda, A. Kievsky, M. Viviani +1
We construct accurate models of three-nucleon (3N) interaction by fitting, in a hybrid phenomenological approach, the low-energy constants parametrizing the subleading 3N contact o…
Benchmark calculation of p-3H and n-3He scattering
M. Viviani, A. Deltuva, R. Lazauskas +3
p-3H and n-3He scattering in the energy range above the n-3He but below the d-d thresholds is studied by solving the 4-nucleon problem with a realistic nucleon-nucleon interaction.…
Breakup of three particles within the adiabatic expansion method
E. Garrido, A. Kievsky, M. Viviani
General expressions for the breakup cross sections in the lab frame for reactions are given in terms of the hyperspherical adiabatic basis. The three-body wave function is ex…
A chiral effective field theory study of hadronic parity violation in few-nucleon systems
M. Viviani, A. Baroni, L. Girlanda +3
We reconsider the derivation of the nucleon-nucleon parity-violating (PV) potential within a chiral effective field theory framework. We construct the potential up to next-to-next-…
Three-nucleon contact interaction at the next-to-leading order
L. Girlanda, A. Kievsky, M. Viviani
A satisfactory description of bound and scattering states of the three-nucleon (3N) system is still lacking, contrary to what happens in the two-nucleon case. In the framework of c…
Benchmark calculation of n-3H and p-3He scattering
M. Viviani, A. Deltuva, R. Lazauskas +5
The n-3H and p-3He elastic phase-shifts below the trinucleon disintegration thresholds are calculated by solving the 4-nucleon problem with three different realistic nucleon-nucleo…
Nonsymmetrized Hyperspherical Harmonics approach to A=6 system
Mario Gattobigio, Alejandro Kievsky, Michele Viviani
The Hyperspherical Harmonics basis, without a previous symmetrization step, is used to calculate binding energies of the nuclear A=6 systems using a version of the Volkov potential…
Electromagnetic transitions for A=3 nuclear systems
L. E. Marcucci, M. Viviani, R. Schiavilla +2
Recent advances in the study of pd radiative capture in a wide range of center-of-mass energy below and above deuteron breakup threshold are presented and discussed.
GRS computation of deep inelastic electron scattering on 4He
M. Viviani, A. Kievsky, A. Rinat
We compute cross sections for inclusive scattering of high energy electrons on 4He, based on the two lowest orders of the Gersch-Rodriguez-Smith (GRS) series. The required one- and…
Neutron-3H and Proton-3He Zero Energy Scattering
M. Viviani, S. Rosati, A. Kievsky
The Kohn variational principle and the (correlated) Hyperspherical Harmonics technique are applied to study the n-3H and p-3He scattering at zero energy. Predictions for the single…