NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of May 3, 2024.

Search: Author = A.Gnech

Found 9 matches.

Back to query form

2024GN01      Phys.Rev. C 109, 035502 (2024)

A.Gnech, L.E.Marcucci, M.Viviani

Bayesian analysis of muon capture on the deuteron in chiral effective field theory

doi: 10.1103/PhysRevC.109.035502
Citations: PlumX Metrics

2022GN01      Few-Body Systems 63, 7 (2022)

A.Gnech, C.Adams, N.Brawand, G.Carleo, A.Lovato, N.Rocco

Nuclei with Up to A=6 Nucleons with Artificial Neural Network Wave Functions

NUCLEAR STRUCTURE ^2,3H, ⁶Li, ^3,4,6He; calculated VM-ANN and HH point-nucleon densities, ground-state energies and charge radii using as input the leading-order pionless-EFT Hamiltonian with and without the 3N force.

doi: 10.1007/s00601-021-01706-0
Citations: PlumX Metrics

2022GN02      Phys.Rev. C 106, 044001 (2022)

A.Gnech, R.Schiavilla

Magnetic structure of few-nucleon systems at high momentum transfers in a chiral effective field theory approach

NUCLEAR STRUCTURE ³He, ^2,3H; calculated magnetic form factor. Chiral effective field theory up to N4LO. Low energy constants determined with following interaction models - NVIa, NVIb, NVIaa, NVIIb, EMN40, EMN500 and EMN550. Comparison to experimental data.

doi: 10.1103/PhysRevC.106.044001
Citations: PlumX Metrics

2021DE01      Phys.Rev. C 103, L012501 (2021)

J.de Vries, A.Gnech, S.Shain

Renormalization of CP-violating nuclear forces

doi: 10.1103/PhysRevC.103.L012501
Citations: PlumX Metrics

2021GN01      Phys.Rev. C 104, 035501 (2021)

A.Gnech, L.E.Marcucci, R.Schiavilla, M.Viviani

Comparative study of ⁶He β-decay based on different similarity-renormalization-group evolved chiral interactions

RADIOACTIVITY ³H, ⁶He(β^-); calculated Gamow-Teller reduced matrix element (RMEs) using the similarity renormalization group (SRG) versions of momentum- and configuration-space two-nucleon interactions N2LO450 and NV2-Ia deduced from chiral effective field theory (χEFT), with and without the explicit inclusion of Δ isobars, contributions of two-body currents such as N3LO(OPE), transition densities; deduced that N3LO(OPE) contribution is opposite in sign for the SRG-evolved N2LO450 and NV2-Ia interactions.

NUCLEAR STRUCTURE ⁶He, ⁶Li; calculated binding energies using the similarity renormalization group (SRG) versions of momentum- and configuration-space

doi: 10.1103/PhysRevC.104.035501
Citations: PlumX Metrics

2021SC12      Phys.Rev. C 103, 054003 (2021)

R.Schiavilla, L.Girlanda, A.Gnech, A.Kievsky, A.Lovato, L.E.Marcucci, M.Piarulli, M.Viviani

Two- and three-nucleon contact interactions and ground-state energies of light- and medium-mass nuclei

NUCLEAR STRUCTURE ³H, ^3,4,6He, ⁶Li, ¹⁶O, ^40,48Ca, ⁹⁰Zr; calculated binding energies in the EFT formalism with the construction of 2N contact local interactions at LO, NLO, and N3LO in configuration space, with deuteron properties determined from analysis of np and pp scattering data. Comparison with experimental data.

NUCLEAR REACTIONS ¹H(n, n), (p, p), E=1-25 MeV; analyzed experimental scattering data; deduced scattering lengths, effective radii and phase shifts, deuteron S-wave radial functions at LO and deuteron S- and D-wave radial functions in the EFT formalism.

doi: 10.1103/PhysRevC.103.054003
Citations: PlumX Metrics

2020GN01      Phys.Rev. C 101, 024004 (2020)

A.Gnech, M.Viviani

Time-reversal violation in light nuclei

NUCLEAR STRUCTURE ^2,3H, ³He; calculated electric dipole moments (EDM) by deriving the time-reversal violation (TRV) nucleon-nucleon (NN) and three-nucleon (NNN) potential up to next-to-next leading order (N2LO) in a chiral effective field theory (χEFT) framework. Comparison with other theoretical calculations.

doi: 10.1103/PhysRevC.101.024004
Citations: PlumX Metrics

2020GN02      Phys.Rev. C 102, 014001 (2020)

A.Gnech, M.Viviani, L.E.Marcucci

Calculation of the ⁶Li ground state within the hyperspherical harmonic basis

NUCLEAR STRUCTURE ⁶Li; calculated ground state binding energy, charge radius, magnetic dipole moment, electric quadrupole moment, asymptotic normalization coefficients (ANCs), matrix elements relevant for direct dark matter search, mean values of the proton and neutron spin operators using the hyperspherical harmonic (HH) approach with two-body nuclear forces. Comparison with other theoretical predictions.

doi: 10.1103/PhysRevC.102.014001
Citations: PlumX Metrics

2019GN01      Nucl.Phys. A987, 1 (2019)

A.Gnech, L.E.Marcucci

Theoretical calculation of the p - ⁶Li radiative capture reaction

NUCLEAR REACTIONS ⁶Li(p, γ)⁷Be, E=0-1.6 MeV; calculated radiative capture astrophysical S-factor using cluster model with intercluster potentials adjusted to the ⁷Be bound state and to the properties and p-⁶Li elastic scattering phase shifts. Compared with available calculations and published data.

doi: 10.1016/j.nuclphysa.2019.04.005
Citations: PlumX Metrics