12 papers
Electron scattering and the distribution of electric charge and magnetization inside nuclei
Alex Gnech, Lorenzo Andreoli, Graham Chambers-Wall +2
How are the electric and magnetic distributions carried by protons and neutrons arranged inside an atomic nucleus? One of the most reliable ways to answer this question is to scatt…
Quantum Monte Carlo calculations of Zemach moments in nuclei
Garrett B. King, Sonia Bacca, Graham Chambers-Wall +4
Modern atomic spectroscopy has reached a level of precision at which nuclear-structure effects can no longer be neglected and must be quantified reliably. In particular, hyperfine…
A new analysis of the "hep" S-factor and the "hen" cross section
Michele Viviani, Alex Gnech, Laura Elisa Marcucci +2
We present a new accurate analysis of the HeHe (''hep'') reaction at astrophysical energies. The S-factor is computed using a state-of-the-art method to calc…
Bayesian analysis of proton-proton fusion in chiral effective field theory
Vittorio Barlucchi, Alex Gnech, Scilla Degl'Innocenti +1
The astrophysical -factor for the proton-proton fusion is calculated in the low-energy regime for a variety of nuclear interactions and consistent nuclear currents, derived with…
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 Hypers…
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:…