title: Thermal neutron captures on d and 3He.
abstract: 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.
authors.affiliation: Department of Physics, University of Pisa, 56127 Pisa, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Girlanda
authors.forename: A
authors.initials: A
authors.lastname: Kievsky
authors.forename: L E
authors.initials: LE
authors.lastname: Marcucci
authors.forename: S
authors.initials: S
authors.lastname: Pastore
authors.forename: R
authors.initials: R
authors.lastname: Schiavilla
authors.forename: M
authors.initials: M
authors.lastname: Viviani