  Using halo effective field theory, we provide a model-independent calculation
of the radiative neutron capture on lithium-7 over an energy range where the
contribution from the 3+ resonance becomes important. One finds that a
satisfactory description of the capture reaction, in the present
single-particle approximation, suggests the use of a resonance width about
three times larger than the experimental value. We also present power counting
arguments that establish a hierarchy for electromagnetic one- and two-body
currents.
