Thermal neutron captures on $d$ and $^3$He

Details Thermal neutron captures on $d$ and $^3$He Thermal neutron captures on $d$ and $^3$He

2010-08-02

arxiv.org/abs/1008.0356v2

Phys.Rev.Lett.105:232502,2010

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 eps figures; references added; corrections to text and abstract as suggested by referee added

Scientific paper

10.1103/PhysRevLett.105.232502

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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