NSR Query Results
Output year order : Descending NSR database version of May 3, 2024. Search: Author = E.Filandri Found 3 matches. 2023GI08 Phys.Rev. C 107, L061001 (2023) L.Girlanda, E.Filandri, A.Kievsky, L.E.Marcucci, M.Viviani Effect of the N3LO three-nucleon contact interaction on p-d scattering observables NUCLEAR REACTIONS 1H(d, d), 2H(p, p), E(cm)=2 MeV; calculated proton and deuteron analyzing power, tensor observables, σ(θ). Chiral effective field theory with AV18 2N potential. Expression of short-range component in terms of five combinations of low-energy constants (LECs) parameterizing the N3LO 2N contact Lagrangian. Comparison to experimental data.
doi: 10.1103/PhysRevC.107.L061001
2023NA32 Eur.Phys.J. A 59, 293 (2023) A.Nasoni, E.Filandri, L.Girlanda Relativistic constraints on 3N contact interactions
doi: 10.1140/epja/s10050-023-01185-3
2022VI01 Phys.Rev. C 105, 014001 (2022) M.Viviani, E.Filandri, L.Girlanda, C.Gustavino, A.Kievsky, L.E.Marcucci, R.Schiavilla X17 boson and the3H(p, e+e-)4He and 3He(n, e+e-4He processes: A theoretical analysis NUCLEAR REACTIONS 3H(p, γ)4He, E(cm)<0.85 MeV; 3He(n, γ)4He, E(cm)<2 MeV; calculated astrophysical S factor, total σ(E) using Δ-less (N3LO500/N2LO500) and Δ-full (NVIa/3NIa) χEFT formalism, and compared with experimental data. 3H(p, e-e+)4He, E=0.90 MeV; calculated five-fold differential σ(E, θ) as function of the electron energy using N3LO500/N2LO500 interactions in the ATOMKI setup. 3H(p, e-e+)4He, E=0.40, 0.90 MeV; 3He(n, e-e+)4He, E=0.17, 0.35, 0.70, 2.0 MeV; calculated four-fold differential σ(E, θ) based on the N3LO500/N2LO500 interactions, including results obtained from the exchange of a scalar, pseudoscalar, vector, and axial X17 boson, and compared with differential σ data for 3H(p, e-e+)4He, E=0.51, 0.61.0.90 MeV reaction from ATOMKI (reported by 2021Kr08: Phys. Rev. C 104, 044003). 3H(p, p)(p, p'), E=0.9 MeV; calculated reduced matrix elements (RMEs) for channels with J≤2, dependences on the three-momentum transfer and proton incident energy of electromagnetic RMEs using N3LO500/N2LO500 or NVIa/3NIa chiral interactions. 3He(n, e-e+)4He, 3He(n, γ)4He, E=0.17, 0.35, 0.70, 1.00, 2.00, 3.50 MeV; calculated total σ(E) using the N3LO500/N2LO500 and NVIa/3NIa Hamiltonians; deduced X17 coupling constants from the fit of the 2019 ATOMKI angular distribution data for 3H(p, e+e-)4He, E=0.90 MeV. Relevance to possible future experiments probing e+ - e- pair production in a four-nucleon system such as 4He at a number of candidate facilities.
doi: 10.1103/PhysRevC.105.014001
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