We report on a study of the nd and n(3)He radiative captures at thermal neutron energies, using wave functions obtained from either chiral or conventional two-and three-nucleon realistic potentials with the hyperspherical-harmonics method, and electromagnetic currents derived in chiral effective field theory up to one loop. The predicted nd and n(3)He cross sections are in good agreement with data, but exhibit a significant dependence on the input Hamiltonian. A comparison is also made between these and new results for the nd and n(3)He cross sections obtained in the conventional framework for both potentials and currents.
|Autori:||Girlanda L; Kievsky A; Marcucci L; Pastore S; Schiavilla R; Viviani M|
|Titolo:||Thermal Neutron Captures on d and (3)He|
|Anno del prodotto:||2010|
|Digital Object Identifier (DOI):||10.1103/PhysRevLett.105.232502|
|Appare nelle tipologie:||1.1 Articolo in rivista|