Ground state capture in N-14(p,gamma)O-15 studied above the 259 keV resonance at LUNA

We report on a new measurement of N-14(p,gamma)O-15 for the ground state capture transition at E-p = 360, 380 and 400 keV, using the 400 kV LUNA accelerator. The true coincidence summing effect-the major source of error in the ground state capture determination-has been significantly reduced by using a Clover-type gamma detector.