Article

Thermal neutron captures on d and 3He.

Department of Physics, University of Pisa, 56127 Pisa, Italy.
Physical Review Letters (impact factor: 7.37). 12/2010; 105(23):232502. pp.232502
Source: PubMed

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.

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Keywords

chiral effective field theory
 
good agreement
 
hyperspherical-harmonics method
 
input Hamiltonian
 
n(3)He radiative captures
 
new results
 
significant dependence
 
thermal neutron energies
 
three-nucleon realistic potentials
 
wave functions